This vicious little item can be used in a number of ways depending upon how much discipline you want to inflict. As a very effective chastity device, place it around the shaft of the penis and during an erection, the points will dig into the most sensitive flesh. As a spiked cock ring, place it at the base of the cock and balls and lock it on with a padlock. As a brutal ball stretcher device wrap it around the scrotum. The method of torture is up to you. The ring has two rows of 0.25 inch long stainless steel teeth. These are not self locking rings, you will need a small padlock, sold separately, to secure it. Measurements, (approximate) 1.75 inch inner diameter Material, Steel Note, Padlock not included