AIRBALLS is a ballstretcher version and the newest addition to our line of AIR products. AIRBALLS is made from soft, smooth plus+SILICONE blend so it's stretchy and sleek but firm enough to give you that solid stretch. AIRBALLS has multiple drainage holes that make for lighter wear and double as holders for electro contacts. The ergo dip design and soft material make for comfortable wear. Our unique ballstretcher design is unlike any other on the market.