The inner dense and uneven folds are squeezed, and the "Miyabi Skin" made in Japan is not too elastic and not too soft. The stimulation of the random undulating flesh wall strengthens the feeling of being squeezed by the vaginal wall! 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.