The PowerGRP GRP-7500X 1000-Count Bulk Resealable Pack of Type 21S AH-2 Black-Colored General-Purpose Cable Ties are 7†long, with 50lb 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 7†cables ties around a wide range of equipment with a bundle diameter between .12†(3mm) and 1.81†(46mm), using the bent tips and serrated locking mechanism to form an effortles