Create a range of courses and easily adapt the desired difficulty level by moving the pieces around on the ground or in the grooves in the 'rock' pieces. This versatility allows you to create an infinite number of courses, giving your children a new adventure every day. They allow children to master their motor skills and thus gain confidence and take initiative in their physical abilities. Consists of: 1 Inclined slat, 1 Flat slat, 1 Rock, 1 20" diameter hoop made from plastic. Designed for both indoor and outdoor use. Made of 100% recyclable plastic. Comes with Teacher's Guide. Ages 3-6.