Five "Hilltops" in different heights which will inspire children to jump from top to top. Hilltops develop children's ability to estimate distances and make them familiar with heights. Each Hilltop is provided with rubber "feet" which prevent them from slipping and protect the floor. Hilltops are made so that they can not overturn. Stackable for easy storage. Can withstand weights up to 110 lbs. Grades PreK-3. Ages 3-7.