Since I did not make this, the material is unknown. It has a color like antique-finished brass. There are individual differences in the darkening. Other conchos are also on sale → #concho1942el Please see the scale in the image for the size. The background squares are also 1cm x 1cm. It's an easy custom to attach to wallets (leather wallets), bags, belts, etc., by making a hole for the screw and passing the screw through from the back and tightening it. You can think of it as a sturdy badge. You can use it in various ways depending on your ideas.