The PowerGRP GRP-8750 100-Count Resealable Pack of Type 21 Black-Colored General-Purpose Cable Ties are 8†long, with 75lb of tensile strength for professional applications. They’re made from polyamide 6,6 nylon, resulting in a high mechanical strength and a wide temperature range (-40 F to 185 F). Fasten these 8†cables ties around a wide range of equipment with a bundle diameter between .12†(3mm) and 1.97†(50mm), using the bent tips and serrated locking mechanism to form an effortless and secure grip. Designed for cable management in industrial applications.