Your ASANA PREMIUM Foam Roller is made of dense EVA foam with a sturdy ABS core. It is used to relieve and reduce muscle soreness and improve recovery. Used properly, the ASANA PREMIUM Foam Roller helps simulate a soothing massage (both deep and superficial) and work out the knots and muscle cramps associated with a good workout or simply from bad sitting, standing or sleeping postures. It's lightweight and only weighs 1.7 pounds and measures 13.5 x 5.5 inches. Foam rolling breaks up scar tissue and helps your muscles retain their elasticity. Foam rolling also helps to improve blood flow which will help your recovery time. All of these benefits help reduce the likelihood of injury. This makes the ASANA PREMIUM Foam Roller a must have for any athlete as well as a wise investment for anyone interested in maintaining their physical fitness.