All ties are conductive throughout & permanent. Rated 10-7 to 10-8 Ohms Sq., ROHS compliant, tamperproof, locks tightly, won't stretch or slide, and UL listed 6.6 nylon. Tensile strengths: 18 lbs. thru 50 lbs., Widths: 0.10" thru 0.19", Small Sizes Range: 4", 6", 7", 8", 9", 10", 11", 13", 14" and 15". Large Size Ranges: 18", 21", 25", 36", 48" and 60". Quantities per box = 1, 000. Create your own color coding system. Colors are non-fading. Regular Colors: Green, Yellow, Red and Blue. Fluorescent Colors: Green, Yellow, Orange, Red and Blue.