1.) Some enlargement tactics may include traction and vacuum devices. Traction devices aim to increase the length of the male reproductive organ by stretching the penile tissue. Several studies have investigated the effects of these traction devices and have found varying results. Some results suggest that the devices can lengthen the penis by 1-3 centimeters.
2.) Vacuum devices consist of a tube that fits over the penis, that pumps out air to create a vacuum that draws blood into the penis, causing it to swell.