2 / Pack. Tape cassettes are designed for use in Casio Label Printers, including CWL300, KL-60, 100, 430, 750, 780, 7000, 7200, 8100; KL-C500 and KL-P1000. They generate fast-printing, professional-looking, 3/4" labels with black print on a white background. Cassettes are easy to install and made from a high percentage of post-consumer recycled material.