Bumper stickers are 4mil white vinyl printed with permanent adhesive backing on an unscored release liner — they bond to any smooth, clean surface and work indoors or out. They are built to stay put; if removal is attempted they will peel unevenly, so treat them as permanent. We can add gloss UV lamination for extra outdoor durability. Art files need 0.5 inches of bleed on all sides; leave crop marks off.
