A flesh tunnel is a type of body piercing jewellery. It is also sometimes referred to as a spool, fleshy, earlet, or eyelet. Contrary to popular belief, it is not called a "gauge." "Gauge" is a measurement and is not a name for this type of body jewelry. Wearers generally use them to show off the process of stretching that they have gone through.
Flesh tunnels are hollow tunnels, usually used in stretched or scalpelled piercings (generally large gauge ear piercings). Flesh tunnels are made in smaller gauges however the smaller the gauge the smaller the effect to see through the plug becomes. Some people may choose to wear flesh tunnels instead of flesh plugs because they weigh less, especially at larger sizes. Flesh tunnels may be worn with a ball closure ring or other object passed through them.