One of three pieces in a set, Identify reveals it to be normal non-magical equipment. If you press this ring into an object for a full hour, it'll leave a tiny & barely visible rune. Those who don't know the rune's hidden location can find it with a DC 25 investigation check. Up to 10 runes can exist, afterwards the newest rune will replace the oldest. The wearer can erase runes at will. Wearing this ring will give you these effects.
1) You can cast "Locate Object" at will.
2) You know the exact location of all runes & have advantage on perception to find them.
3) Once per Long Rest you can use an action to teleport yourself to a Rune, on the same plane of existence as you, at the cost of erasing it. (Arrows of Teleporting)

Notes: Rogue class