Brady PermaSleeve M21-250-C-342 is a heat-shrink sleeve for marking wires and cables and creating electrical labels. Its polyolefin construction shrinks around the wire when heat is applied, leaving the printed identification in place.
The sleeve is black on white with a matte finish. It is 11.15 mm high and supplied on a 2.13 m roll. The stated wire and cable diameter range is 2.39–5.46 mm, making this size suited to wires within that range. Its shrink ratio is 3:1, and printing uses thermal transfer.
This cartridge is compatible with BMP21, BMP21-LAB, BMP21-PLUS, IDPAL, LABPAL, M210, M210-LAB and M211 printers.