Inspired by stepping stones in a river, each side of the triangle varies in steepness and difficulty. The purpose is to jump from stone to stone without touching the floor. Rubber feet prevent stones from slipping and also protect indoor floor areas. Supports up to 220 lbs. Includes 3 large 1'2"W x 3"H stones and 3 small 10"W x 2"H stones. Set of 6.