A flesh tunnel, also known as a spacer is a piece of jewelry used in some forms of body modification. It can also be known as  spools, fleshies, earlets expansions, or eyelets. They are generally used to show that the stretching process has been taken.

A Flesh tunnel is usually a hollow pieces jewelry with a hole in the center, usually drilled in straight or with a scalpel. Flesh tunnels vary in size, but the lower the gauge number, the smaller the hole seen through the tunnel. Some people ...