Material: These 4 Inch cable ties with 20 lbs tensile strength is made of reliable UL-listed 6/6 Nylon material. 
Durability: They can be used in any weather condition and under the temperature from -40 to 185 degrees F which are perfect for indoor and outdoor use in long service life a nylon cable tie is a kind of fastener that can be used in electrical cable management and data centers.