Penis pumps are devices designed to help you achieve and maintain an erection. They consist of a cylinder placed over the penis, a pump (manual or automatic) that creates a vacuum to draw blood into the penile tissue, and a constriction ring to be placed at the base of the penis to maintain the erection. While they can be used for pleasure, they are also a common and effective non-surgical treatment for erectile dysfunction (ED), offering a drug-free way to enhance blood flow and firmness.