Best Selling Product, Hollow Yoga Foam Roller Foam For Physiotherapy Function: It can help reduce the pain and muscle soreness due to excessive exercise or work. Massaging the muscles increases blood flow and oxygen to the tissue being exercised, helping the natural healing process. It helps with flexibility as well. Size: 12.6 x 5.51 Inches Weight: Ultralight 0.135 Kg Colors: White, Black