I bought this for my daughter as an indoor activity to burn of some energy when it is too hot to go out in the afternoon. She loves it! She was a little nervous at first but she quickly learned how to balance herself and she was bouncing all around the house. We have wood flooring throughout the house and tile in the kitchen. The toy did not slip or leave any marks on the floor. The toy does squeak every time she jumps and it was annoying her. She figured out that she could easily remove the two red foam plugs in the hole on each side of the foam block and pull out the squeakers. It looked so fun, I even tried it myself. I ended up purchasing a second one after this order to give as a gift!