This items is a Very Rare creation of House Lyrandar in collaboration with Cannith Whiteheart. Very few were ever made.
Ring of Planar Bouy
Wonderous Item, Very Rare, Conjuration
This small Red and White ring has a small filigree rope running around its edge.
When worn an in a plane other than the material plane, you may speak its command word to cast the spell Planeshift. When cast in this way the spell returns the user to a random location on the surface of the Material plane. Once used this ring looses its magical properties.