Tunnel piercing is a unique kind of piercing wherein a pierced area is allowed to stretch leading to elaboration of the same. It is attained by utilizing tunnels, plugs or other special jewelries such as expander plugs tunnels anodized. The most common type of stretched piercing is of course the ear piercing.
You can get these plugs and tunnels in different lengths and sizes. Furthermore, for additional beautification, these are now available in lots of designs and colors. These can be made using various materials such as glass, surgical steel and more. The anodized type offers extra lure and shine to the accessory!