The bumper inserts into the outer housing which threads onto the wall-fastened base plate with a 9/16 in.
, Cast Brass, Brushed Chrome, Wall Stop with Convex Bumper This item will not repair holes caused by door knobs, but can prevent them when installed correctly. 1 in.Constructed of solid rubber to cushion and stop fast swinging doors Comes off-white in color to blend and/or compliment finished wall surfaces bestDesigned for use to prevent hinged entry doors from impacting adjacent walls, but can be used with other hinged doors where knob hardware may cause damageFeatures an easy to mount designEasy to install with only a few simple toolsFasteners includedA Phillips head screwdriver is required for installationFor further dimensional information, please see the line drawing.