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Medical steel stainless steel material, does not change color, does not fade, and does not oxidize.
[Size]: 0.8mm thick*11mm length*4mm ball. Chain length is about 3.8cm
[Material]: 316L medical steel, commonly known as titanium steel/stainless steel.
[Features]: Anti-radiation, no rust, no fear of sweat, no fear of water, long-term gloss.
[Process]: Vacuum electroplating and polishing.








