About This 500 Pack: With 500 zip ties, you don't have to worry about running out in the middle of your project Ultra Heavy Duty: 12" cable ties provide 220 lb tensile strength, making them perfect for heavy-duty use Ideal for: 12 inch wire ties are suitable for most bundling needs and can be used in homes, gardens, garages, and HVAC systems High Quality: These plastic ties are made of brand-new nylon material (UL 94V-2 rated) and are resistant to cold and UV exposure Long & Versatile: 12" tie wraps accommodate most bundling needs, with maximum bundle diameters of 3.2" Warranty: Customer will receive a 100% refund if any quality issue under 1-year warranty period Overview Material : Nylon Color : Black Brand : ANOSON Item Length : 12 Inches Style : Lock