The Panduit C100X050YMC is a cassette of 500 white labels for printing 1 x 0.50 inch adhesive labels using a thermal transfer printer. This cassette contains an integrated memory device for automatic formatting, recall of last legend used, and the number of labels remaining in the cassette. The label material is vinyl cloth, which resists oil, has low moisture absorption, and is non-conductive. It is lightweight and flexible, and resists heat. The cassette contains both label material and ribbon. It has a surface temperature range of 50 to 170 degrees F. This thermal transfer label cassette is Underwriters Laboratories (UL) Recognized and compliant with the Restriction of Hazardous Substances (RoHS) directive and is suitable for use with Panduit"s PanTher LS8E hand-held thermal transfer printer.Thermal transfer (TT) labels come in sheets or rolls with an adhesive backing and a surface material die-cut into individual shapes for use in thermal transfer printers. As the label passes through the printer, a thermal printhead melts a coating of wax or resin from the ink ribbon onto the label where it is then absorbed. This printing method is typically used in manufacturing for in-house printing of bar codes and alphanumeric identification, price tags, warning labels, and other specialty print jobs. Panduit manufactures electrical and networking products. The company, founded in 1955, is headquartered in Tinley Park, Il.