... PET(polyethylene)film, the characters are virtually indestructible.2. The label is self-adhesive, crack and peel, can be stick to ... be used outdoors as well as indoors.3. usage example: cable mark, components mark, direction mark, folder mark, goods mark, interface ... , white, black. Lable tape compatible for Brother TZ-231 barcode label tape label printer box tape brother barcode labels