MindWare KEVA Contraptions Reactions Planks Building Toy - 178 KEVA Building Planks (191 Piece Set) - Free-Form Wood Building Set for Kids to Create Their Own Ball Maze – Ages 7 & Up

STEM Toys That Teach: These KEVA blocks help kids gain first-hand experience with balance, leverage, geometry and the principles of physics while fostering an interest in architecture and design