Review on AppleRound Space Hopper Ball Pump Sports & Outdoor Play : Pogo Sticks & Hoppers by Johnny Mcnealy

I made the classic mistake of only buying one of these hopper balls for two granddaughters (7 and 9). They liked it so much that they argued about it for two hours on the first day. When one used it, the other whined that they didn't play it right and that she could play it much better when it was her turn. I had to be his "angry grandmother" and put her in the closet. After they hid it in a closet for two weeks, my husband asked them to write and sign an agreement on how they would share the ball. He only had to remind her once or twice of what they had agreed upon. Peace has been restored and they continue to enjoy hopball.