Details: nylon 66,UL 94v-2 fire and heat resistant,UV resistant,50 lbs tensile strength heavy duty,can up to 70 LBS Package: black wire zip toes 8in 100 pieces in poly bag with hang hole Length:300mm(12”),width:4.8mm(3/16”),max bundle diameter:3.23” Features:strong and durable,insulated and weatherproof, the teeth engage as they should,self-locking design ensure bundle wires more tightly and secure,perfect stuff of cable management,it is popular with vintner,decorator,designer,engineer,father RISK FREE GUARANTEED - Quality guarantee and 5-star customer service. If you are not 100% completely satisfied with your self locking 8 inch zip ties, simply let us know and you will be offered a FULL refund or replacement.