The Japanese SOLVEMEN brand specializes in the development of masturbation products that solve men's troubles. Carrying the name of the tightest and narrowest exercise masturbation cup, the channel is only 0.5 cm, extremely stimulating exercise, resulting in stronger sexual performance! The channel is covered with dense spiral meat patterns, the three-dimensional rotation stimulates the experience, and the super-intensive training feeling. 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.