TZe231-2PK comes in eco-friendly packaging Resistant to water, sunlight, chemicals, heat and cold Can be used indoors, including in microwaves and freezers, and outdoors Brother TZe Tapes are available in many sizes and colors Brother TZe-231 2 pack labels are a good investment for all of your label making needs. This value two-pack includes ½” (12mm) tapes that feature black text on a white background. TZe tapes feature Brother’s exclusive laminated tape process that makes labels very durable in conditions of normal wear and tear.