This Bathmate Hydropump Penis Enlargement Pump is one of the most advanced and patented methods of improving the size of your manhood. Easily operated in the comfort and privacy of the bathroom, the Bathmate Penis Enlargement Pump is filled with water to help create a strong vacuum. Simply fill the Bathmate with water, place over the penis and push the tube towards the body as the sprung base helps push the water out through the top valve to create a vacuum. Continue to pump every 4 to 5 minutes to increase the vacuum for up to 15 minutes. With daily use, increases in both length and thickness have been seen. For the ultimate in penis pumping, the Bathmate can help improve a bigger penis, harder erections and increased stamina with daily use.