This retractable gate kit adjusts to any gate up to 20' wide, and has a 1/4" rope with 6 conductors. It automatically rewinds rope into a protective case. You also get all of these items to install the kit. (Mounting attachments for wood and T-post, fence to reel electric connector, two ring gate/fence insulator, gate and fence insulator for T-post). What a great deal! (one per package)