The penis pump is the ultimate sex toy for increasing your size in proportions rarely seen before use. It is made of a generally transparent sheath or tube which is emptied of their air by the action of a manual or electric pump. The pressure exerted increases the blood flow to the penis, filling all these tissues and consequently its size. Normally it is accompanied by a ring or cockring which is placed at the base of the phallus to speed up this process. Its recurrent use is a real gymnastics for the penis by giving us more robust erections.