I use this product for physical therapy, which is perfect , however, be careful where you leave/store it. I was leaving it on a stained wooden cabinet, and when I picked it up, it was stuck, and had “melted” the stain where the ball touched the wood in a perfect round circle. I then left it on a kitchen counter, and it got pushed against the wall. When I picked it up the next time, it was stuck to the wall, and removed a chunk of paint! Very strange. The ball itself, however is great! Just be mindful where you leave it.
Rating: [4 of 5 Stars!]