The Pro-Tec Roller Massager features raised Vynafoam sections that sink into soft tissue to roll out tightness and rounded grip ends that provide precision trigger point release. This roller offers deep tissue stimulation and massage in order to maximize muscle performance and flexibility. By rolling the Roller Massager along the area of tightness, you can perform a self-massage or Myofascial release. Myofascial release has been shown to relieve various muscle and joint pains such as IT band syndrome and shin splints as well as improving flexibility and range of motion. A full color instruction manual covering over 20 massage and trigger point release techniques for your entire body is included.