Labret internally threaded with flat disc

This labret looks as if it had flat discs at both ends, but this is not the case: the difference is that the top disc can be screwed off, meaning the post is internally threaded.
Internal threading protects your skin from scratches when pushing the post through your piercing hole. Regular labrets are externally threaded, where the thread may be a little sharp and may damage your skin when pinning it in.

Labrets are intended for use in lip piercings but, many people also wear them as ear piercing jewelry because of their flat bottom disc. If you, for example, wear it in the tragus, you can forget about that large locking ball, as it may be safer to wear a small flat plate at the entrance to the ear.
The jewelry will also work in a helix piercing, as you may benefit from the short length of only 5/32" (4 mm). You can naturally wear it in the ear lobe as well, as long as the bar gauge matches that of your piercing hole.

Choose the length, the color and you can also choose the diameter of the top disc.