All Gear Rocket Line Arborist Rope 7/16" X 120'"Rocket Line" is a 7 16" or 11. 5mm 24 Strand Polyester Cover, a 16 Strand Polyester Core and a Cabled and Twisted Center Core. An Arborist Line with the Neon Yellow and Bright Red! Quality engineering and construction are guaranteed by premium fibers and excellent quality control. The "Rocket Line" provides you with the ability to increase safety and a good firm construction keeps the line round for high performance.