There are a wide variety of items designed to help men suffering from impotence, but the most popular and commonly used by far are penis pumps. These pumps work by creating a vacuum around the penis, causing blood to be drawn into it. The difference between blood pressure and pressure in the pump is what causes this effect. Penis pumps are not the cheapest option, but they are one of the most effective, and are especially useful for men who cannot take pills or use creams designed to overcome impotence due to an allergy or medical condition. Almost all penis pumps come with a set of penile constriction rings, which are slid onto the base of the penis to help maintain an erection once it is achieved. Both manually (push-pull) operated and battery-powered penis pumps exists, and some of the best products of each category can be found below.
