The Step-a-Stumps set includes two each of three different size tree stumps, small stump (8.7"W x 3.9"H), medium stump (10.2"W x 4.4"W) and a large stump (11.3"W x 5.2"H). Each of these tree stump shapes is made of durable polypropylene plastic with soft non slip surface rings that allow the children to safely experience balance and gain their confidence as they jump from tree stump to tree stump. 6 pieces in a set and includes carry bag with strap.