Young builders will gain first-hand experience with balance, leverage, geometry and physics as they design with this KEVA Maple Plank set by MindWare.PRODUCT FEATURES Use imagination to construct sky scrapers, castles & more Sturdy construction ensures durability & longevity Includes: 400 maple planks, 2 KEVA balls & guide book Age: 5 years & up Model no. MW58078 Size: One Size. Color: Multicolor. Gender: unisex. Age Group: kids.