Marble Run with Motor Set
Get ready for the ultimate building set for aspiring engineers and thrill-seekers: the KNEX Marble Coaster Run with Motor! This innovative new set allows you to flex your creative muscles and build a fully-functional marble coaster from the ground up. With over 500 pieces and multiple builds, this building set is perfect for all skill levels from beginner to pro. Hook up your coaster to the working motor and watch your creation come to life with exciting movements and chain reactions that you can watch again and again.
Get ready for the ultimate building set for aspiring engineers and thrill-seekers: the KNEX Marble Coaster Run with Motor! This innovative new set allows you to flex your creative muscles and build a fully-functional marble coaster from the ground up. With over 500 pieces and multiple builds, this building set is perfect for all skill levels from beginner to pro. Hook up your coaster to the working motor and watch your creation come to life with exciting movements and chain reactions that you can watch again and again.
Get ready for the ultimate building set for aspiring engineers and thrill-seekers: the KNEX Marble Coaster Run with Motor! This innovative new set allows you to flex your creative muscles and build a fully-functional marble coaster from the ground up. With over 500 pieces and multiple builds, this building set is perfect for all skill levels from beginner to pro. Hook up your coaster to the working motor and watch your creation come to life with exciting movements and chain reactions that you can watch again and again.
Get ready for the ultimate building set for aspiring engineers and thrill-seekers: the KNEX Marble Coaster Run with Motor! This innovative new set allows you to flex your creative muscles and build a fully-functional marble coaster from the ground up. With over 500 pieces and multiple builds, this building set is perfect for all skill levels from beginner to pro. Hook up your coaster to the working motor and watch your creation come to life with exciting movements and chain reactions that you can watch again and again.
in 16 offers
The lowest price for Marble Run with Motor Set right now is $93.96 at Toy Street, compared across 14 retailers.
The all-time low was $93.14 on 5 June 2026 — today's price is 1% above the lowest ever. This is at or near its all-time low — a good time to buy.
Prices last updated 9 June 2026.
Last updated at 09/06/2026 22:51:38
K'NEX - Marble Run 3 Model Building Set (with Motor)
Delivery $34.16
K'nex Marble Coaster Run Building Set
Delivery between Fri – Tue $10
504pc Knex Marble Coaster Run with Motor Kids/Childrens Toy Playset 8+
Free delivery between Fri – Tue
Knex - K'Nex Marble Coaster Run with Motor Set
Delivery between 12–23 June $10.95
Knex Classics - Marble Run 3 Model Building Set
Free delivery
KNEX - Marble Coaster Run with Motor 504 Pieces, STEM Building, Kid Construction Set Ages
Delivery between 14–18 June $14.17
KNEX - Marble Coaster Run With Motor 504 Pieces, STEM Building, Kid Construction Set Ages 8+
Delivery $28.47
Knex - Marble Run With Motor Set
Delivery $12.83
KNEX - Marble Coaster Run with Motor 504 Pieces, STEM Building, Kid Construction Set Ages
Delivery between 14–18 June $15.49
knex - Marble Run with Motor Set
Free delivery between 12–19 June
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K'NEX - Marble Run 3 Model Building Set (with Motor)
Delivery $34.16
K'nex Marble Coaster Run Building Set
Delivery between Fri – Tue $10
504pc Knex Marble Coaster Run with Motor Kids/Childrens Toy Playset 8+
Free delivery between Fri – Tue
Knex - K'Nex Marble Coaster Run with Motor Set
Delivery between 12–23 June $10.95
Knex Classics - Marble Run 3 Model Building Set
Free delivery
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