This titanium internally threaded halfdome will fit any Industrial Strength brand barbells of the same gauge. The halfdome is made from 6AL4V ELI F-136 implant grade titanium and is countersunk for a precision fit. This halfdome has a black PVD diamond-like carbon coating.
This threaded end will fit Industrial Strength brand internally threaded jewelry, but may not fit your other brand jewelry if purchased elsewhere (due to possible differences in threading). The gauge of the end must be the same gauge as the jewelry it threads into.