R8 roller, muscle massager. A few minor scuffs but works great. The R8™ features an integrated spring configuration, stainless steel hardware fasteners, ball bearings in all pivot points, soft-touch handles and the ability to change the roller Inserts for a customizable feel. The patented technology self-adjusts for different body sizes and targets the IT-bands, quads, hamstrings, calves, shins, gluteus, arms and more. It takes the work out of rolling and is compact enough to take anywhere.