Self-locking Nylon Cable Ties Material: UL approved nylon 66, Fireproof Standard: 94V-2, heat, acid and erosion resistant, insulating, durable and not apt to age. Environment Standard: RoHS, TUV PAHs, Reach Working Temperature: -40 to 85 Centigrade Color: Black, Natural Color (white, standard color), UV black, other colors are available