Size for each compatible DYMO 18056: 1/2-inch (12mm) wide, 5'(1.5m) long. It doesn't mean the diameter of the heat shrink tube but the width of the tubing flattened in the feed cartridge.
Tape Color: Yellow. Character Color: Black. Compared to the common black on white color, this black print against yellow background heat shrink tube label can be more recognizable and readable.
Compatible with DYMO RHINO PRO PRINTERS: RhinoPRO 1000, 3000, 4200, 5000, 5200, 6000 and ILP-219 labellers. Also suitable for use in 3M PL100, PL200, PL300 and Tyco T107M machines.
The backing is split down the middle allowing you to easily remove the backing. Besides, they are acting good to resist hot and cold temperature, water, UV, chemicals and oils.
HEAT SHRINK TUBING is specifically designed for labeling wires and cables. The 1/2" is best for CAT5 or CAT6 cables.