Pro-Tie Light Duty cable ties are made from high strength and lightweight 6/6 nylon. Nylon 6/6 is a hygroscopic material, which absorbs and releases moisture, is non-toxic and has a working temperature range of -40°F to 185°F. 40 lbs. tensile strength. Approximately .05” thick and .14” wide. UV Black cable ties are UV stabilized for outdoor use. 100 in a package.