Builds children's confidence when jumping, judging distances, and balancing. Rubber feet prevent tops from slipping and also protect indoor floor areas. Hilltops are made so they cannot overturn. Supports up to 220lbs. Set includes 3 different heights: 1'2"W x 3"H, 1'4"W x 3"H, and 1'5"W x 10"H. Set of 5.