LUXEHOME Sports Foam Roller 13" x 5" with Grid for Deep-Tissue Massage and Trigger-Point Muscle Therapy (Black) EVA Imported Durable massage roller is filled with EVA + ABS foam to prevent cracking under heavy pressurethe maximum pressure up to 300kg. Compact style helps reduce pain & relax muscles in hard-to-reach areas of back, arms, legs, etc Use for self-myofascial release to eliminate muscle knots & improve blood flow for quick recovery Stretch muscles & soothe tension with various density zones that mimic a masseuse without the cost Half the size of standard foam rollers, the 13" x 5" design is lightweight & easy to carry and store. This foam roller is designed for both home use, at the gym and it's compact enough for travel too.