These stickers are made from a 4 mil, matte aluminum foil, with a permanent adhesive. They have a real aluminum surface. They are often used for equipment serial number markings. They can be sequentially numbered. Supplied cut to size or in strips with a face-slit. These stickers are embossable – writing on them with a ball-point pen, or using a typewriter, will leave a permanent emboss on the sticker. Screen printed foil decals have a 7-8 year exterior longevity. Due to the nature of the material, foil decals are not available with a shape cut.