Replacement part for the Drifter Seat. Heavy duty 1" Nylon Three-Strand White Rope measures 5' long. Includes loop at the top for you to connect a carabiner (sold separately) to your trolley. Rope can be adjusted by tying a knot anywhere along the entire length of the rope for your seat to rest on. Most people set the knot about 3 FT below the trolley.