Master Series Ring Master Custom Ball Stretcher KitGet the stretch you crave one ring at a time with Ring Master Custom Ball Stretcher Kit from Master Series by XR Brands. Designed to satisfy your need for intensity, this 6 ring set tests your limits as you stack each stretchy band around your balls. Wear them all at once or one at a time, or wrap them separately around your testicles and shaft the choice is yours with Ring Master. Beginner friendly 6 ring stretching kit slows blood flow to the balls