The Portable Printer Continuous Heat Shrink Labels In White Are Made Of Military-Grade Polyolefin. They Measure 0.13" (3.1 MM) Diameter, 8' (2.4 M) Length, and 0.25" (6.4 MM) Width and Have A Wire Range Of 22 - 18 Awg. The Fast-Loading MP™ Label Cassette Includes Both Label Material and Ribbon For Easy Label Changing.