Cable ties are made of Nylon 66 material. Cable ties meet the USA Standard for Safety of Flammability of Plastic Materials for Parts in Devices and Appliances testing standard UL 94 2V. Cable ties are suitable for general and industrial use. Best temperature for use is from -20C to +65C, but also are usable from -40C to +85C. In addition to cables the ties can be used for closing PP woven and paper sacks and quickly repair unexpectedly broken items.