The Hydromax X-series is the next stage of Hydro Pump evolution. Developing the innovative Bathmate, the new bellows pump and valve give 35% more power for even greater gains with more safety and comfort. By introducing new materials into the mix we have been able to create a unique bellows system that is not only stronger and more durable but also gives more flexibility, allowing you to create greater suction with less effort.The internal bellows size has also been increased and the number of convoluted reduce giving you plenty of room for increased girth expansion. The addition of our new super soft comfort pads have been a revelation in providing a tighter and more comfortable seal against the body, this means less pumping and less loss of suction. The soft touch outer edge feels great against the body and the rigid inner tube provides a strong and sturdy shield around your penis from the inside of the bellows. Comfort pads are completely removable for easy cleaning and general hygiene. The clear measuring guide on the front of the device has been re-designed to include both imperial and metric measurements giving you the ability to track your progress in a scale that you understand Hydromax X20 Extreme Crystal Clear penis pump is the next stage of Hydro Pump evolution. Developed from the already innovative Bathmate, the X20 furthers innovation with a new bellows pump and valve for 35% more power than before and even greater gains with enhanced safety and comfort. As the world's best selling penis enlargement device, it is used by thousands of men in over 70 countries. Designed for use in the bath or shower, Bathmate products are a safe and convenient way to exercise your penis using the amazing natural power of water that only a true Bathmate Hydropump can deliver. As well as providing you with a larger penis over time, its regular use helps you to keep your penis in top health which leads to harder and longer lasting erections as well as increased sexual satisfaction. In short, it is a great boost to your self esteem and sexual confidence. Made using body safe materials.