Color Neon Yellow and International Safety Orange, Safetylite is a 1/2" diameter, 16-Strand Polyester Arborist/Working Line with the proven colors of the safety industry. High visibility is critically important to many climbers. Quality engineering and construction are guaranteed by premium fibers and excellent quality control. The Safetylite provides you the ability to increase safety and a good firm construction keeps the line round for high performance. 7,500 lbs. Average Break Strength.