With insulating clips: Whether it's wrapping a transformer damaged by a or connecting to a utility pole, the blanket can be locked in under 2 seconds. The 5 1/2-inch grips with openings grip 1/4" to 2" thick surfaces with no conductive risk and have been tested for 10,000 on/off cycles to make them easier to handle Red Polymer Insulation Blanket: Our insulation blanket is made of Polymer, which is fireproof, waterproof, flame retardant, and has passed 1000 times insulation test, which can provide effective insulation protection for firefighters/linemen and make it safer to use Portable & foldable: Our thermal blankets are lightweight and easy to handle and carry. A storage bag is also included for better storage in the toolbox for easy portability. Even in the face of imminent danger, work can begin immediately 0.4kV: 0.4kV for residential circuit maintenance, automotive circuit maintenance, low-voltage control cabinet coverage, etc Widely used: As a power line worker, it can guarantee your safety and efficiency in daily handling of power equipment, communication lines. This tool is required for all kinds of rescue work in live workplaces, power overhauls, on-site construction sites, basements, substations, electrical cabinets and switchgears, etc, Manufacturer: WLCGYD