HMD Shuttle Sked ropes are constructed of 1/2 inch solid braid polypropylene. They are 200ft. long with a figure 8 knot saftied with a barrel knot and taped to prevent unraveling while in use. A Large aluminum D carabiner is attached. The rope kit includes a Haz-Mat rope bag for quick tangle free deployment. These ropes are attached to both ends of a HMD Sked for dragging into and out of the Hot-zone.