Hydro7, Hydromax7, and HydroXtreme are three penis pumps designed for average-sized users but their impact on the user is different. If you are looking for a gentle starter pump, then Hydro7 is for you. Or else, Hydromax7 is the right choice if you want bigger and amplified sexual power and size. But if you really want to unleash your true sexual prowess and want some unmatched and unbeatable results, then the ultra-powerful and HydroXtreme7 is the absolutely game-changer device for you!