Young thinkers can build unbelievable ball track structures with this simple stacking plank system. Create ramps, funnels, chutes and crazy contraptions like the "Black Hole" and "Bounce Plate." Fostering unlimited creativity and experimentation, KEVA planks build an early understanding of proportion and balance, while teaching basic principles of physics and engineering. No glue, no connectors-just loads of constructive fun!

Includes 200 identical pine planks, 2 specially designed lightweight balls for maximum action and an 18-page idea book with project photos and quick-start instructions. Ages 7 and up.

Note: While our regular KEVA planks are made in the USA from recycled maple, KEVA Contraptions sets are made from pine in China. KEVA Contraptions is fully compatible with other KEVA building sets or similar plank sets such as Kapla and CitiBlocks.