The handles can be used on their own to provide a platform to reduce the pressure on your wrists. However, by adding the rotational discs, the pressure is moved from your shoulders to the chest and triceps to further maximise upper body and core strength.
The rotational effect allows the arms to move in a more natural way whilst engaging muscles in the shoulder, back and chest. They also reduce muscle pain and help with toning and strength goals. Sold as a pair the ergonomic handle design offers great comfort during your workout.