Scarlet Couture Glass Duo Balls. One of the kinky toys you've read about in erotic novels, Ben Wa Balls make a wonderful addition to any toy chest! Often used in popular erotic novels. Exercise with the balls for greater control and stronger stimulation. Great for low-key stimulation for long periods of time. Change the balls' temperature for extra stimulation. Retrieval ring on end for safe and easy removal. Balls can be removed from the silicone harness. Measures 1 inch wide and 3 inches long, insertable. Balls are made from hypoallergenic glass. Harness is made from smooth and stretchy silicone.