Bathmate Hydromax5 Penis Pump - Red will have your penis popping and pumping to it's full potential. Using water pressure to develop penis size, improve stamina, blood flow this baby will give pleasure that last longer and stronger. Specifically designed to suit users measuring up to 5 inches when erect, and delivers ideal performance for those between 3 and 5 inches. As part of Hydromax series, the best-selling penis pump model worldwide, Hydromax5 delivers major results, particularly noticeable at this size.