General Application: Contoured raised sections stimulate blood flow and allow for a customized deep tissue massage. 5″x 14″ size ideal for rolling both large and small muscle groups. Long ridges combine with pronounced bumps to offer a more diversified surface area. Thin outer layer of foam provides a firm surface for aggressive Myofascial Release. Benefits of Deep Tissue Massage: Reduces muscle fatigue and tightness Promotes flexibility and enhances performance.