Great for all fitness levels, these Extreme Push-Up Rotating Push-Up Grips target a large variety of muscles and reduce strain on joints. Unique design features durable plastic rotating discs with rubberized comfort grips, steel ball bearings for smooth rotation and non-slip bases making them great for any floor surface. Providing the ultimate upper body workout, these grips strengthen and tone chest, arms, shoulders, back, abs and more. Comes packaged in an individual box.