Our massage ball is a little different from the others. It only contains a resin ball and a plastic base, so we also call it the massage roller ball. You can roll the ball on your pain spot, and it will help to release the pain. And the effect will be much better is you drop some liquid medicine first. The surface of the ball is pretty smooth so that it can roll freely. That’s why it’s easy for the customers to use. There are some different designs of base and multi-colors of the ball.