Unique style, bottle cap bezel. 7mm deep and approximately 20mm across. Brass base plated in a brass ox finish. 20 prongs to hold whatever item to suit your project. You can inlay with resin and let lay for about three days to set up and cure, then you can fold the prongs---carefully, don't scratch the resin---over top for a really cool finished look.....or! before you inlay it, you can nip them OFF and file the bezel, to use it more like a standard bottle cap. Sold by the piece.