ProTie Brown Standard Duty Color 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 to 185-Degree F (-40 to 85-Degree C). Color cable ties are not UV stabilized. Tensile strength of 50-Pound and a bundle diameter of 3.0.