5/8" 3-strand polyblend synthetic lifeline with #74N locking snaps at one end, thimble other end. When ordering, final product #'s are designated by length from 25' to 200'. For example: FC-41125 - 411, 25' in length. FC-41150 - 411, 50' in length. FC-41175 - 411, 75' in length. FC-411100 - 411, 100' in length. FC-411200 - 411, 200' in length