This stainless steel internally threaded ball will fit any Industrial Strength barbell. The ball is made from 316LVM ASTM F-138 implant grade stainless steel and is countersunk for a precision fit.
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.
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