A penis pump is a vacuum device that is used to enlarge the penis and treat erectile dysfunction. It comprises a chamber (a cylindrical tube that encompasses the penis), and a pump (a device that removes air from the chamber). When air is removed from the chamber, the internal pressure increases, and blood is drawn into the shaft of the penis.

Yes, penis pumps really work. They are FDA-approved to treaterectile dysfunction, and used by millions of men around the worldto safely enlarge their penises. After just one training session withyour penis pump, your penis will feel heavier and look girthier. Withconsistent training, your penis will start to look and feel bigger and
longer all the time.