Designed to stay open and upright for ultra-convenient access, then conveniently folds in seconds for take-anywhere transport and storage. Polyester mesh bag features a rugged canvas bottom for durability, internal steel-wire reinforcement for strength, and an adjustable shoulder strap for comfort. Medium (36"H x 18" sq) holds 16 official basketballs; Large (36"H x 24" sq) holds 24.