MindWare KEVA Contraptions 50 Planks - 50 Wood Planks, 2 Balls & Building Instruction - Learn Basic Principles of Physics & Engineering for Kids - Age 7+

Young thinkers can design unbelievable ball track structures via simple, stacking planks. No glue, no connectors-just loads of constructive fun! The 50-Plank Set helps kids get things rolling with two balls and an instruction book detailing how to build a "Shooting Gallery," "Turbine," "Step Curve" and more. Fully compatible with our larger, 200-Plank KEVA Contraptions Set. *Age Recommendation: Ages 7+

No glue, no connectors Includes: 50 wood planks, 2 balls and building instruction book Teaches basic principles of physics and engineering