The Andro-Penis - is based on the principle of traction. It is classified as a Type 1 Medical Device, and holds European Health Certification. The device is composed of a plastic ring connected to two dynamic metal rods, a plastic support and a silicone band that holds the glans in place. It is a European device, which can be easily worn and taken off. It is very discreet and comfortable. You can wear it while walking, sitting, standing, and so on. Scientific Principle: Andro-Penis - is a traction device used to enlarge the penis. This growth occurs due to the reaction capacity of tissues to undergo cellular multiplication when they are subjected to a continuous force of traction. The principle of traction is used in plastic surgery for tissue expansion. The regeneration of new tissue is used to cover cutaneous defects, burns, and areas of hair loss. It is also used in orthopaedic surgery to enlarge the diaphysis of long bones and phalanges. In ancient cultures this principle of traction is used to enlarge different parts of the body, like the neck of the Giraffe women of the Paduang tribe in Burma, or the lips and ears of other African and Amazonian tribes. They attach prothesises or weights for elongation. Effectiveness: A Scientific Guarantee, since very prestigious urologists at international level have carried out scientific studies that prove an effectiveness of 97,5%