Pro-Tec Y Roller 6"x15.5" The Pro-Tec Y Roller is an excellent tool that promotes flexibility and myofascial release. Reduces muscle fatigue and tightness, promotes flexibility, and enhances performance. Made from Elastomer, a high density, durable foam. Dual or single ridge option offers a targeted, aggressive massage. Offers the ability to roll in between ridges for a less aggressive, moderate massage.