TK316 is short for TUSK Stainless-steel, which indicated that the jewellery will stay stainless and you'll have no issues cleansing it. M on a hoop denotes Milor, that's an Italian silver jewellery company. 925 signifies that the jewellery is made from sterling silver. Should the mystery of “JP 88” persists, https://stephenjzpev.blogsvila.com/37130226/considerations-to-know-about-jp88