This is an aftermarket product imported from overseas. It's a logo sticker made by thinly slicing genuine abalone shell into the shape of the Epiphone logo (less than 0.15mm thick). It's a sticker, so just peel it off the blue backing sheet and transfer it with the protective sheet on the surface. When used for guitar repair, it's compatible with lacquer, poly, and other types of paint. The thickness is approximately 0.15mm, including the adhesive layer. Please see the images for the size.