The M300X100Y7T Thermal Transfer Polyester/Polyolefin Non-Adhesive Marker Plate offers crisp, clear legends with superior legibility. The marker plate allows for mounting flexibility, attachable in a horizontal or vertical orientation. Designed for use with Panduit RMER4BL thermal transfer resin ribbon. Temperature range: -58°F to 221°F (-50°C to 105°C). Polyester/Polyolefin. 1" x 3" (25.4 mm x 76.2 mm). Color White. 500 labels per roll.