I ordered my back baller online and received it the next day. I work out at the gym.I wanted it to help relieve the knots i get in my upper back and shoulders which causes me problems in my rotator cuff area. I really found the back baller work at these knots and i have had some relief. I will continue to use it, and i hope to be free of the knots with continued use. I would have like some anti-slip pads on the bottom, as i use it on wooded floors and it does slide a bit. Otherwise i think this is a great product.