Ease muscle tension in your tired and sore muscles after a heavy week of working hard with the HolaHatha High-Density Hollow Eva Foam Roller.This foam roller allows you to self-massage at home to increase your muscle flexibility while reducing pain and stiffness on your off-days. For anyone who works out regularly, you'll quickly appreciate the raised areas that mimic the shape of fingers. The hollow, 3D back roller was designed to provide full-body massages that stimulate muscle tissue for recovery. Lay down and roll out your hamstrings. The muscle roller can be used to target different areas of the body to improve muscle pain and stiffness.