Shop k'nex building sets

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$44.77
K'nex Mega Models - 700 Pc/40 Model Set
Walmart
4
Free shipping
$44.77
K'nex Mega Models - 700 Pc/40 Model Set
Walmart
4
$39.66
K'nex - 70 Model Building Set 705 Pieces, STEM Learning, Creative Play Set Ages 7+
Amazon.com
3K+
Free shipping
$39.66
K'nex - 70 Model Building Set 705 Pieces, STEM Learning, Creative Play Set Ages 7+
Amazon.com
3K+
$52.57
K'nex - 100 Model Building Set 863 Pieces, STEM Building, Kid Construction Set Ages 7+
Amazon.com
2K+
Free shipping
$52.57
K'nex - 100 Model Building Set 863 Pieces, STEM Building, Kid Construction Set Ages 7+
Amazon.com
2K+
$48.85
K'nex Pac-Man Series 1 Mystery Figure Bag Set
Walmart
Free shipping
$48.85
K'nex Pac-Man Series 1 Mystery Figure Bag Set
Walmart
Free shipping
$50.00
K'nex Imagine - Classic Constructions 70 Model Building Set - Creative Building Toy
Walmart
24
Free shipping
$50.00
K'nex Imagine - Classic Constructions 70 Model Building Set - Creative Building Toy
Walmart
24
$52.99
Imagibricks Giant Building Blocks - Assorted - 40 Pieces
School Outfitters
$52.99
Imagibricks Giant Building Blocks - Assorted - 40 Pieces
School Outfitters
$32.99
K'nex Education - Intro To Simple Machines: Gears Set - 198 Pieces - Grades 3-5 - Engineering Education Toy
Amazon.com
873
$32.99
K'nex Education - Intro To Simple Machines: Gears Set - 198 Pieces - Grades 3-5 - Engineering Education Toy
Amazon.com
873
$35.75
KNEX Education - Intro To Structures: Bridges Set - 207 Pieces - For Grades 3-5 Construction Education Toy
Amazon.com
830
Free shipping
$35.75
KNEX Education - Intro To Structures: Bridges Set - 207 Pieces - For Grades 3-5 Construction Education Toy
Amazon.com
830
$48.08
KID KNEX - Oodles Of Pals Building Set - 116 Pieces - Ages 3 And Up Preschool Educational Toy (Amazon Exclusive)
Amazon.com
3K+
Free shipping
$48.08
KID KNEX - Oodles Of Pals Building Set - 116 Pieces - Ages 3 And Up Preschool Educational Toy (Amazon Exclusive)
Amazon.com
3K+
$41.67
K'nex Imagine - Creation Zone Building Set - 417 Pieces - Ages 5 And Up - Construction Educational Toy
Walmart
18
$41.67
K'nex Imagine - Creation Zone Building Set - 417 Pieces - Ages 5 And Up - Construction Educational Toy
Walmart
18
$48.91
K'nex Imagine - Power & Play Motorized Building Set - Creative Building Toy
Walmart
58
Free shipping
$48.91
K'nex Imagine - Power & Play Motorized Building Set - Creative Building Toy
Walmart
58
$34.09
$49.99
Kid K'nex - Budding Builders Building Set - 100 Pieces - Ages 3 And Up - Preschool Educational Toy
Walmart
13
31% off
$34.09
$49.99
Kid K'nex - Budding Builders Building Set - 100 Pieces - Ages 3 And Up - Preschool Educational Toy
Walmart
13
$37.19
K'nex - Adventure Wheels Building Set - 480 Pieces STEM Building, Creative Construction Set Ages 7+
Amazon.com
5K+
Free shipping
$37.19
K'nex - Adventure Wheels Building Set - 480 Pieces STEM Building, Creative Construction Set Ages 7+
Amazon.com
5K+
$37.13
K'nex - Click & Construct Value Building Set - 522 Pieces, STEM Building, Creative Play Set Ages 7+
Amazon.com
1K+
Free shipping
$37.13
K'nex - Click & Construct Value Building Set - 522 Pieces, STEM Building, Creative Play Set Ages 7+
Amazon.com
1K+
$19.99
Motorized Creations K'nex Building Set
Hobby Lobby
119
$19.99
Motorized Creations K'nex Building Set
Hobby Lobby
119
$85.59
POPULAR PLAYTHINGS Playstix Super Set Construction Toy Building Blocks 400 Piece STEM Kit (90004)
Amazon.com
127
Free shipping
$85.59
POPULAR PLAYTHINGS Playstix Super Set Construction Toy Building Blocks 400 Piece STEM Kit (90004)
Amazon.com
127
$26.99
K'nex X-Battlers X-Trasher Building Set
Walmart
Free shipping
$26.99
K'nex X-Battlers X-Trasher Building Set
Walmart
Free shipping
$39.08
K'nex Classics Motorized Creations Building Set
Walmart
2
Free shipping
$39.08
K'nex Classics Motorized Creations Building Set
Walmart
2
$49.10
K'nex - Power & Play Motorized Set 529 Pieces, STEM Building, Kid Construction Set Ages 7+
Amazon.com
2K+
Free shipping
$49.10
K'nex - Power & Play Motorized Set 529 Pieces, STEM Building, Kid Construction Set Ages 7+
Amazon.com
2K+
$18.95
KID K'nex - Build A Bunch Set 66 Pieces, Preschool STEM Building, Kid Construction Set, Creative Play Ages 3+
Amazon.com
1K+
$18.95
KID K'nex - Build A Bunch Set 66 Pieces, Preschool STEM Building, Kid Construction Set, Creative Play Ages 3+
Amazon.com
1K+
$34.09
KID K'nex - Budding Builders Set 100 Pieces, Preschool STEM Building, Kid Construction Set, Creative Play Ages 3+
Amazon.com
2K+
$34.09
KID K'nex - Budding Builders Set 100 Pieces, Preschool STEM Building, Kid Construction Set, Creative Play Ages 3+
Amazon.com
2K+
$33.21
K'nex Intermediate 60 Model Building Set - 395 Parts - Ages 7 & Up - Creative Building Toy, Multicolor, Includes K'nex Parts And Pieces, Instruction
Amazon.com
576
$33.21
K'nex Intermediate 60 Model Building Set - 395 Parts - Ages 7 & Up - Creative Building Toy, Multicolor, Includes K'nex Parts And Pieces, Instruction
Amazon.com
576
$24.99
K'nexosaurus Rex K'nex Building Set
Hobby Lobby
145
$24.99
K'nexosaurus Rex K'nex Building Set
Hobby Lobby
145
$45.00
K'nex - Amazin' 8 Coaster STEM Building Set, Kid Construction, Creative Play Toy Ages 9+
Amazon.com
13
Free shipping
$45.00
K'nex - Amazin' 8 Coaster STEM Building Set, Kid Construction, Creative Play Toy Ages 9+
Amazon.com
13
$64.92
KEVA Structures 200 Wood Building Planks Set - Building Toy Includes 200 Wooden Blocks And Idea Book - Ages 5 And Up
Amazon.com
836
Free shipping
$64.92
KEVA Structures 200 Wood Building Planks Set - Building Toy Includes 200 Wooden Blocks And Idea Book - Ages 5 And Up
Amazon.com
836
$44.09
$54.00
K'nex Thrill Rides - 3-In-1 Classic Amusement Park Building Set - 744 Pieces - Ages 9 Engineering Education Toy
Walmart
44
Free shipping
18% off
$44.09
$54.00
K'nex Thrill Rides - 3-In-1 Classic Amusement Park Building Set - 744 Pieces - Ages 9 Engineering Education Toy
Walmart
44
$20.99
$29.99
K'nex Education Stem Explorations Ed. Gears Building Set 143 Pcs 79318
eBay
1
Free shipping
30% off
$20.99
$29.99
K'nex Education Stem Explorations Ed. Gears Building Set 143 Pcs 79318
eBay
1
$47.71
K'nex Knx 17035K'nex Amusement Park Building Set Toy 744 Pc
Opentip.com
2K+
$47.71
K'nex Knx 17035K'nex Amusement Park Building Set Toy 744 Pc
Opentip.com
2K+
$52.51
K'nex Amusement Park Building Set Toy Plastic 744 Pc
Max Warehouse
2K+
$52.51
K'nex Amusement Park Building Set Toy Plastic 744 Pc
Max Warehouse
2K+
$40.42
K'nex Knx 85618 Budding Builders Tub Building Set Toy 100 Pc
Opentip.com
2K+
$40.42
K'nex Knx 85618 Budding Builders Tub Building Set Toy 100 Pc
Opentip.com
2K+
$36.83
K'nex Knx 77078K'nex Roller Coaster Building Set Toy 546 Pc
Opentip.com
1K+
$36.83
K'nex Knx 77078K'nex Roller Coaster Building Set Toy 546 Pc
Opentip.com
1K+
$43.92
K'nex Roller Coaster Building Set Toy Plastic 546 Pc
Max Warehouse
1K+
$43.92
K'nex Roller Coaster Building Set Toy Plastic 546 Pc
Max Warehouse
1K+
$44.49
KNEX KID K'nex Budding Builders Tub Building Set Toy 100 Pc, KNX 85618
Zoro.com
2K+
$44.49
KNEX KID K'nex Budding Builders Tub Building Set Toy 100 Pc, KNX 85618
Zoro.com
2K+
$46.95
KNEX K'nex Roller Coaster Building Set Toy 546 Pc, KNX 77078
Zoro.com
1K+
$46.95
KNEX K'nex Roller Coaster Building Set Toy 546 Pc, KNX 77078
Zoro.com
1K+
$43.41
K'nex Budding Builders Tub Building Set Toy Plastic 100 Pc
Max Warehouse
2K+
$43.41
K'nex Budding Builders Tub Building Set Toy Plastic 100 Pc
Max Warehouse
2K+
$30.99
$44.99
Electric Gear Building Block Toys - 178PCS
tohittheroad.com
31% off
$30.99
$44.99
Electric Gear Building Block Toys - 178PCS
tohittheroad.com
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Shop k'nex building sets

Sponsored
About our ads
$34.09
$49.99
Kid K'nex - Budding Builders Building Set - 100 Pieces - Ages 3 And Up - Preschool Educational Toy
Walmart
13
31% off
$34.09
$49.99
Kid K'nex - Budding Builders Building Set - 100 Pieces - Ages 3 And Up - Preschool Educational Toy
Walmart
$37.19
K'nex - Adventure Wheels Building Set - 480 Pieces STEM Building, Creative Construction Set Ages 7+
Amazon.com
5K+
Free shipping
$37.19
K'nex - Adventure Wheels Building Set - 480 Pieces STEM Building, Creative Construction Set Ages 7+
Amazon.com
$37.13
K'nex - Click & Construct Value Building Set - 522 Pieces, STEM Building, Creative Play Set Ages 7+
Amazon.com
1K+
Free shipping
$37.13
K'nex - Click & Construct Value Building Set - 522 Pieces, STEM Building, Creative Play Set Ages 7+
Amazon.com
$19.99
Motorized Creations K'nex Building Set
Hobby Lobby
119
$19.99
Motorized Creations K'nex Building Set
Hobby Lobby
$85.59
POPULAR PLAYTHINGS Playstix Super Set Construction Toy Building Blocks 400 Piece STEM Kit (90004)
Amazon.com
127
Free shipping
$85.59
POPULAR PLAYTHINGS Playstix Super Set Construction Toy Building Blocks 400 Piece STEM Kit (90004)
Amazon.com
$26.99
K'nex X-Battlers X-Trasher Building Set
Walmart
Free shipping
$26.99
K'nex X-Battlers X-Trasher Building Set
Walmart
$39.08
K'nex Classics Motorized Creations Building Set
Walmart
2
Free shipping
$39.08
K'nex Classics Motorized Creations Building Set
Walmart
$49.10
K'nex - Power & Play Motorized Set 529 Pieces, STEM Building, Kid Construction Set Ages 7+
Amazon.com
2K+
Free shipping
$49.10
K'nex - Power & Play Motorized Set 529 Pieces, STEM Building, Kid Construction Set Ages 7+
Amazon.com
$18.95
KID K'nex - Build A Bunch Set 66 Pieces, Preschool STEM Building, Kid Construction Set, Creative Play Ages 3+
Amazon.com
1K+
$18.95
KID K'nex - Build A Bunch Set 66 Pieces, Preschool STEM Building, Kid Construction Set, Creative Play Ages 3+
Amazon.com
$34.09
KID K'nex - Budding Builders Set 100 Pieces, Preschool STEM Building, Kid Construction Set, Creative Play Ages 3+
Amazon.com
2K+
$34.09
KID K'nex - Budding Builders Set 100 Pieces, Preschool STEM Building, Kid Construction Set, Creative Play Ages 3+
Amazon.com
$33.21
K'nex Intermediate 60 Model Building Set - 395 Parts - Ages 7 & Up - Creative Building Toy, Multicolor, Includes K'nex Parts And Pieces, Instruction
Amazon.com
576
$33.21
K'nex Intermediate 60 Model Building Set - 395 Parts - Ages 7 & Up - Creative Building Toy, Multicolor, Includes K'nex Parts And Pieces, Instruction
Amazon.com
$24.99
K'nexosaurus Rex K'nex Building Set
Hobby Lobby
145
$24.99
K'nexosaurus Rex K'nex Building Set
Hobby Lobby
$45.00
K'nex - Amazin' 8 Coaster STEM Building Set, Kid Construction, Creative Play Toy Ages 9+
Amazon.com
13
Free shipping
$45.00
K'nex - Amazin' 8 Coaster STEM Building Set, Kid Construction, Creative Play Toy Ages 9+
Amazon.com
$64.92
KEVA Structures 200 Wood Building Planks Set - Building Toy Includes 200 Wooden Blocks And Idea Book - Ages 5 And Up
Amazon.com
836
Free shipping
$64.92
KEVA Structures 200 Wood Building Planks Set - Building Toy Includes 200 Wooden Blocks And Idea Book - Ages 5 And Up
Amazon.com
$44.09
$54.00
K'nex Thrill Rides - 3-In-1 Classic Amusement Park Building Set - 744 Pieces - Ages 9 Engineering Education Toy
Walmart
44
Free shipping
18% off
$44.09
$54.00
K'nex Thrill Rides - 3-In-1 Classic Amusement Park Building Set - 744 Pieces - Ages 9 Engineering Education Toy
Walmart
$20.99
$29.99
K'nex Education Stem Explorations Ed. Gears Building Set 143 Pcs 79318
eBay
1
Free shipping
30% off
$20.99
$29.99
K'nex Education Stem Explorations Ed. Gears Building Set 143 Pcs 79318
eBay
$47.71
K'nex Knx 17035K'nex Amusement Park Building Set Toy 744 Pc
Opentip.com
2K+
$47.71
K'nex Knx 17035K'nex Amusement Park Building Set Toy 744 Pc
Opentip.com
$52.51
K'nex Amusement Park Building Set Toy Plastic 744 Pc
Max Warehouse
2K+
$52.51
K'nex Amusement Park Building Set Toy Plastic 744 Pc
Max Warehouse

Shop k'nex building sets

Sponsored
About our ads
$44.77
K'nex Mega Models - 700 Pc/40 Model Set
Walmart
4
Free shipping
$44.77
K'nex Mega Models - 700 Pc/40 Model Set
Walmart
4
$39.66
K'nex - 70 Model Building Set 705 Pieces, STEM Learning, Creative Play Set Ages 7+
Amazon.com
3K+
Free shipping
$39.66
K'nex - 70 Model Building Set 705 Pieces, STEM Learning, Creative Play Set Ages 7+
Amazon.com
3K+
$52.57
K'nex - 100 Model Building Set 863 Pieces, STEM Building, Kid Construction Set Ages 7+
Amazon.com
2K+
Free shipping
$52.57
K'nex - 100 Model Building Set 863 Pieces, STEM Building, Kid Construction Set Ages 7+
Amazon.com
2K+
$48.85
K'nex Pac-Man Series 1 Mystery Figure Bag Set
Walmart
Free shipping
$48.85
K'nex Pac-Man Series 1 Mystery Figure Bag Set
Walmart
Free shipping
$50.00
K'nex Imagine - Classic Constructions 70 Model Building Set - Creative Building Toy
Walmart
24
Free shipping
$50.00
K'nex Imagine - Classic Constructions 70 Model Building Set - Creative Building Toy
Walmart
24
$52.99
Imagibricks Giant Building Blocks - Assorted - 40 Pieces
School Outfitters
$52.99
Imagibricks Giant Building Blocks - Assorted - 40 Pieces
School Outfitters
$32.99
K'nex Education - Intro To Simple Machines: Gears Set - 198 Pieces - Grades 3-5 - Engineering Education Toy
Amazon.com
873
$32.99
K'nex Education - Intro To Simple Machines: Gears Set - 198 Pieces - Grades 3-5 - Engineering Education Toy
Amazon.com
873
$35.75
KNEX Education - Intro To Structures: Bridges Set - 207 Pieces - For Grades 3-5 Construction Education Toy
Amazon.com
830
Free shipping
$35.75
KNEX Education - Intro To Structures: Bridges Set - 207 Pieces - For Grades 3-5 Construction Education Toy
Amazon.com
830
$48.08
KID KNEX - Oodles Of Pals Building Set - 116 Pieces - Ages 3 And Up Preschool Educational Toy (Amazon Exclusive)
Amazon.com
3K+
Free shipping
$48.08
KID KNEX - Oodles Of Pals Building Set - 116 Pieces - Ages 3 And Up Preschool Educational Toy (Amazon Exclusive)
Amazon.com
3K+
$41.67
K'nex Imagine - Creation Zone Building Set - 417 Pieces - Ages 5 And Up - Construction Educational Toy
Walmart
18
$41.67
K'nex Imagine - Creation Zone Building Set - 417 Pieces - Ages 5 And Up - Construction Educational Toy
Walmart
18
$48.91
K'nex Imagine - Power & Play Motorized Building Set - Creative Building Toy
Walmart
58
Free shipping
$48.91
K'nex Imagine - Power & Play Motorized Building Set - Creative Building Toy
Walmart
58
$34.09
$49.99
Kid K'nex - Budding Builders Building Set - 100 Pieces - Ages 3 And Up - Preschool Educational Toy
Walmart
13
31% off
$34.09
$49.99
Kid K'nex - Budding Builders Building Set - 100 Pieces - Ages 3 And Up - Preschool Educational Toy
Walmart
13
$37.19
K'nex - Adventure Wheels Building Set - 480 Pieces STEM Building, Creative Construction Set Ages 7+
Amazon.com
5K+
Free shipping
$37.19
K'nex - Adventure Wheels Building Set - 480 Pieces STEM Building, Creative Construction Set Ages 7+
Amazon.com
5K+
$37.13
K'nex - Click & Construct Value Building Set - 522 Pieces, STEM Building, Creative Play Set Ages 7+
Amazon.com
1K+
Free shipping
$37.13
K'nex - Click & Construct Value Building Set - 522 Pieces, STEM Building, Creative Play Set Ages 7+
Amazon.com
1K+
$19.99
Motorized Creations K'nex Building Set
Hobby Lobby
119
$19.99
Motorized Creations K'nex Building Set
Hobby Lobby
119
$85.59
POPULAR PLAYTHINGS Playstix Super Set Construction Toy Building Blocks 400 Piece STEM Kit (90004)
Amazon.com
127
Free shipping
$85.59
POPULAR PLAYTHINGS Playstix Super Set Construction Toy Building Blocks 400 Piece STEM Kit (90004)
Amazon.com
127
$26.99
K'nex X-Battlers X-Trasher Building Set
Walmart
Free shipping
$26.99
K'nex X-Battlers X-Trasher Building Set
Walmart
Free shipping
$39.08
K'nex Classics Motorized Creations Building Set
Walmart
2
Free shipping
$39.08
K'nex Classics Motorized Creations Building Set
Walmart
2