These die-cut labels have rounded corners and a special adhesive backing which adheres well to plastics, glass or metals. Waterproof. Resistant to most chemicals and tearing. Autoclavable. Rated to -29°C. Laser and ink jet printer compatible. Accepts a variety of inks including copier, maker, ballpoint, gels and technical markers. Pretest specific inks for suitability prior to use. Does NOT accept Pencil. Formatted for easy set-up in most work processing label printing programs; easy set-up instructions included with each pack. Refer to package label for printing instructions.