RELIEVE MUSCLE PAIN & BOOST YOUR RECOVERY TIME: Relieve aches, pains, and muscle tension with a "GUTE" Foam Massage Roller. Roll muscles over the roller to break-up soft-tissue adhesions and target painful trigger points (muscle knots) that can develop after a workout DEEPER PENETRATING MYOFASCIAL RELEASE: The foam roller features a hollow plastic core with a foam grid exterior for deeper penetrating myofascial release. The bumps act like the hands and fingers of a masseuse to target, loosen, and release tight muscle knots far more effectively. INCREASE YOUR PERFORMANCE FOR MAXIMUM RESULTS: Rolling your muscles releases toxins and increases the flow of blood and oxygen to the target area. Roll before a workout to increase your performance or use it after a workout to boost your recovery time and protect yourself from injury. EVA FOAM CONSTRUCTION FOR COMFORT AS YOU ROLL: The roller has been designed using EVA foam which is firm enough to deliver a deep muscle massage without feeling too harsh when you roll. Another benefit of EVA is that it retains it shape after heavy use, rather than degrading over time. LIGHTWEIGHT & PORTABLE TO USE WHEREVER YOU GO: The massage roller measures 33cm x 14cm x 14cm. Does not come with yoga roller storage bag