Not only pleasure, but also a glans stimulation trainer! A happy training ground to achieve both! The ultimate glans training, the training is very exciting and pleasant! With the protrusion channel design and the front tongue, squeeze the trainer in a vacuum state, let the glans enjoy vibration, rotation and kneading, and at the same time, it can train endurance! Variety of variations, no need to stop training! WARNING: Keep the product away from children. DO NOT expose the product or the charging device to humid places, direct UV or sunlight for an extended period. NEVER immerse or rinse the charging device in water or other fluids. If your toy appears to function abnormally, turn it off. 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.