The Trigger Point Handheld Massage Roller Ball provides an easy self-massage and relief from the discomfort of sore and tired muscles anywhere on the body. Featuring a non-friction ball that glides smoothly over bare skin or clothing for effective massage without resistance, a push button can also stop the ball from rolling for cross-friction massage. The ergonomic silicone handle fits comfortably in the hands, and makes it easy to apply the desired amount of pressure, varying from light surface pressure to deep into the muscle tissue. Measuring just 3 x 3 inches and weighing 0. 5 pounds, the massage roller ball is conveniently portable, fitting easily into a purse, gym bag, briefcase, or carry-on for on-the-go pain relief. The Trigger Point Handheld Massage Roller Ball is constructed from high-quality materials that are resistant to splitting or cracking, including a hard plastic massage ball, and silicone outer. Manufacturer’s one-year limited .