LS-18HERSH… Pair of Solid Brass Drop Front Desk Lid Supports. Satin Brass for Secretary Desk or other drop downs. One of the longest lid supports we sell. This reproduction will hold the lid when extended 180 degrees while the lid is open. Attaches with 3 screws per side, screws included. Approximately 18 inches long when extended. Offers more support because of the length. Flat stock brass is 1/2 inches wide by 1/8 inches thick. Bar that attaches with one screw to cabinet wall is slightly offset to avoid scraping the side. See the extra large picture to see more detail. Excellent piece of hardware.