High Density Foam Roller for Fitness Gym Exercises Yoga Foam Roller for Physio Massage Pilates Tight Muscles -Ideal for self message, balance training -Great build quality to with wear and tear, easy to clean - Light Weight and Durable - Made from high density EVA foam with textured dotted surface which is soft to touch knobs for added comfort. The foam roller help soften up adhesion or knots that form on your muscles replicating the effects of regular massage