Four ultra-tight and intricate spiral stimuli! The inner curved meat wall of Drift Helix 471 aircraft cup is covered with a large number of thick folds with tire patterns. Under the tight and narrow channel, every slight bend can strongly stimulate the entire penis! Under the simultaneous triggering of the three sensations of vacuum, fit and friction, it will give you a refreshing burst of ejaculation! 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.