This titanium internally threaded faceted gem ball will fit any Industrial Strength brand barbell. The ball is made from 6AL4V ELI F-136 implant grade titanium and is countersunk for a precision fit. The faceted Swarovski crystal is available in fourteen colors. Please note that Alexandrite and Blue Zircon gem colors are not available on 1/4" balls so they don't show up in the gem color selection pull downs for that size ball.
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.