I was so happy to have found this item. I was looking for the name brand bouncer, but they are no longer making them. Skeptical at first because the ball came deflated and looked like I couldn't make this work. But after inflating the ball, and adjusting it, it works great! Make sure that the ball is inflated enough for the weight of the person using it. I am a 49 year old female, so I had to inflate it nice and full so the ball wouldn't pop out while bouncing. At first, I didn't inflate it enough and that's what happened. But with more air, it stayed intact and I was bouncing away! These are great just for fun or for exercise value. It does take a little time to learn though! While learning, holding onto something like the stair banister will help. It takes practice to get it right, just getting onboard! Exercising that's fun is the way to go!