Using the latest digital technology, we can make your tag pop with color! Write-on tags are constructed of .040 white polystyrene with a .010 reverse printed polycarbonate overlay. Choose from matte or gloss finish. Matte will be used if no finish is specified. Material can be written on with permanent marker or pen. Includes tag slot and your choice of loop strap. To add an address block to a tag, specify a standard ink color. Black will be used if none is specified. You may use our standard layout or provide artwork. No address block is included in the cost of the tag. See below for additional cost to add the address block. Stock Background, call for.