The WMS heat shrink tubes permanently and securely mark conductors and cables. To make optimal use of the material, the tubes are pre-configured. Up to four markers per tube are separated by perforation. The following standards are met:

• UL 224 (125 °C, 600 V, All tubing-1)
• CSA C22.2 No. 198.1 (125 °C, 600 V, All tubing-1)
• MIL-STD-202G, SAE AMS.