Neck rings consist of single brass coils placed around the neck. The first coil is applied on girls at age five and then replaced by longer coils as they grow older. These coils generally weigh about 5 kg (11 pounds).
Metal rings are also worn on different parts of the body, not just the neck. Traditionally these rings are given to a wife by her husband, and not removed until the husband's death; however, these rings are individual and do not function as a body modification.
From neck rings to painful facial scarification, meet some people who modify their bodies for their beliefs.