Brother TC6001 TC Tape Cartridge for P-Touch Labelers, 1/2w, Black on Blue Type: Tape Cartridge for Label Makers Color: Black on Blue Sizes/Dimensions: 1/2 (12mm) Specifications: For Use With: PT-10, PT-12, PT-12N, PT-15, PT-150, PT-170, PT-170K, PT-20, PT-25, PT-6, PT-8