Sentry Supply 658-1013 Door Holder, 4In Drop Down, Cast Iron, Aluminum Painted Color, Gray Rubber, Pack of 1 This door holder hardware is used to hold doors open at desired location. For use on commercial and residential applications Once installed, this door holder has a 4 inch drop when measured from pivot center, down to floor Aluminum colored, painted finish This item is constructed of heavy cast iron Installation fasteners are included with this item