Overtake! The ultimate locking ring is made of greatly elastic silicone, easy to wear, tight fit, effectively reducing the discomfort for long-term use. Triangular design helps control blood flow, so that you will be erect, thicker! WARNING: Keep the product away from children. DO NOT expose the product to humid places, direct UV or sunlight for an extended period. Product is a reuseable after wash. DO NOT use this product with more than one person. DO NOT place any object inside the cup for use. Safety Precautions: Always clean the product before and after use. We recommend using water-based lube with your toy.