Any ring Along with the STS stamp on it means that it had been produced by an STS Jewellery firm, which has its headquarters in Austin, Texas. 925 is a sign for sterling silver. TK316 is short for TUSK Stainless-steel, which indicated that your jewelry will continue to be stainless https://slotgacorhariini86420.oblogation.com/35984534/about-jp88