[COMPATIBLE WITH]:Will fit your old glider，This length is 16”.It is only suitable for gliders with a distance of 16 inches between common holes [PRODUCT SPECIFICATIONS]:Item Length：16in ；Item Width 1-1/4” [PACKAGING INCLUDES]:4 metal straps w/ 1/4''-4Pcs hardware included, painted primer-BLACK. [SIMPLE INSTALLATION]: Direct replacement, NOT require any modification [NOTE]:Please confirm that the parts are the correct ones you need before purchasing. If you are not sure, please contact us for verification. Will fit your old glider，This length is 16”.It is only suitable for gliders with a distance of 16 inches between common holes