The X40 is the next size up from the original X30: it is 15% larger. Introducing the new revolutionary concept in penis development. The Bathmate Hydromax X40 is the ultimate in hydro technology for penis development and health. It does everything the Bathmate X30 does and more. Hydromax generates 35% more suction than Bathmate due to its unique, newly designed Bellows Pump system, and allows for better and faster gains. The Bellows system now incorporates a new, soft-close, fully supportive comfort ring to give you less pressure and more comfort around the base of the penis and testicles. As an added bonus, it is also removable for easy cleaning. A new Swivel Bellows feature allows 360 degrees of positive rotation to give you a full visual view of the chamber plus an option to change the angle of inclination for optimal efficiency when using in the bathtub or shower - or when using the amazing new Hydromax pleasure ring system. A new Super Flow Latch Valve system allows you to fill with one hand in the shower, making using and positioning the hydro pump much easier for you. A new metric scale gives you a better visual representation, plus texturing on the top and bottom of the vacuum tube for better grip and control. The internal spring bellows has been enlarged and the number of overlaps reduced, so that you can get an even more impressive circumferential extension. Your guarantee of quality: - Hydromax is manufactured in Bathmates own factory in the UK and all parts are made from the highest quality materials and formed to exacting specifications and tolerances. Hydromax pumps and components undergo rigorous testing in Bathmates' own laboratory and are routinely tested to 100,000 cycles of use, which equates to 3 years in normal use. - Hydromax and its new design features are protected by worldwide patents, design registrations and trademarks. Hydromax is truly the ultimate hydropump system! Weight: 434g Maximum penis circumference with comfort ring: 20,3 cm Maximum penis width with comfort ring: 6,3 cm Maximum penis length: 27,9 cm Max. vacuum water: -0.55 bar