Nylon Non-Releasable Cable Ties. Material: Nylon 6.6 (Polyamide 6.6); Color: Natural (White & Black) Flammability Rating: UL94V-2,Operating Temperature Max: 85°C, Operating Temperature Min:-40°C, Flame Retardant. What are they used for? These Cable ties are used as a type of fastener, for holding items together, primarily electrical cable or wire. Features and Benefits? High quality Suitable for a multitude of uses Easy to thread Self-extinguishing to rating UL94V-2 UL approved nylon 6.6 Why choose this product? These Cable ties should be an essential part of every tool kit.