I sawed out the thick teardrop shape from thick 22 gauge copper. I textured it and glass enameled the front & back in my kiln. The image is glass & does not rub off. I polished and sealed all the exposed copper. Over time copper will tarnish no matter what but it will add to the rustic nature of the pendant in my opinion! Size in photos. This is a glass fused to copper, so take care not to drop it.