Titanium Solid Ball Labrets Internal Thread (4mm Base)

A staple piercing piece made of ASTM F-136 implant grade titanium. Internal or threadless jewelry is preferable to external posts for inserting into a fresh piercing due to its smooth end so no damage is done. Flat disc backs are 4mm wide.

18G variations all have 0.9mm thread pattern (same as 16G) in this 4mm base size.