Use the Pro-Tec Roller Massager for effective myofascial release to relive muscle and joint pain, and to improve flexibility and general range of motion. Use the rounded grip ends to release and loosen knots and roll the raised Vynafoam sections over muscles and tendons for deep tissue massage. The Pro-Tec Roller Massager is available in standard (22˝). An instructional brochure with 20 massage and trigger point techniques is included to help you make the most of your new massager.