Just add bed sheets for endless fun! Children of all ages love building fun structures where they can play endlessly in their imaginary worlds. Crazy Forts are powered by a child's imagination. A single Crazy Forts Kit contains 25 geometrically precise balls and 44 sticks that connect to create a multitude of possible play structures. Simply throw a bed sheet over top and watch their creativity flourish. A rocket today an undiscovered cave tomorrow a princess' castle one day and a wild horse in a corral next week are all possible with Crazy Forts. The more they have, the better it gets as multiple kit structures are even more impressive. Durable, portable and best of all, no batteries are required! Crazy Forts makes imaginary play easy and fun!