Iron Gym Push Up rotating push up grips allow your arms and shoulders to move naturally. More muscles are targeted more effectively while reducing strain on wrists and joints. Strengthen and tone your chest, shoulders, arms, back and abs... fast! It"s the ultimate upper body workout! Iron Gym Push Up rotating push up grips are portable and work on any floor surface - great for home, office and travel. It"s a must for anyone who is serious about getting in shape.