The Hydromax series is the next stage of Hydro Pump evolution. A gentle start to the penis expansion journey. The water-based power of this pump is for users measuring between 3 and 5 inches when erect. Once filled with warm water, the pump seals against the body. For best results start with 3 five minute sessions per use (1-3 months). Developing the innovative Bathmate, the new bellows pump and valve give 35% more power for even greater gains with more safety and comfort. For men with erect penis size 3-5 inches. One Year Warranty. Bathmate Size Guide Get the best possible results from your workout. This Bathmate size guide shows you the minimum and maximum lengths and girths for each pump size. If you pick a pump that's too big, you won't get the right amount of pressure. A pump that's too small can be uncomfortable.
