The Hydro 7 (formerly known as the Hercules) is Bathmate's original and best-selling penis pump, with over a million units sold since its launch in 2006. Known for its revolutionary design and impressive results, the Hydro 7 is easy to use and offers various benefits for penile health and wellbeing. Ideal for beginners, it provides a safe and convenient way to practice penile rigidity exercises. Designed for men with an erect penis size of 5 to 7 inches, the Hydro 7 features a length of 11.7 inches and a canal diameter of 2.1 inches.