Put a new twist on push up grips.Rotaing grips allow arns and shoulders to move naturally. More muscles are targeted more effectively while reducing strain on wrists and joints.Strengthen and tone your chest,shoulders,arns,back and abs. it is the ulrimate upper body workout.the push up grips is portable and works on any floor surface---great for home,office and travel.A must for anyone who is serious about getting in shape.