The 133680 is a standard direct thermal paper label, material type B-813, designed for ribbonless, low-cost labeling applications. It features a matte paper finish and a permanent acrylic adhesive, with a total thickness of 0.004 inches (0.1 mm). The label is engineered to perform in a wide temperature range, with a long-term high service temperature of 140°F (60°C) and a low service temperature of -40°F (-40°C). This material is ideal for general-purpose indoor labeling, but is not recommended for applications involving high heat, humidity, or outdoor exposure.