Rockwood 461L Kick Down Door Stop Made Of Solid Cast Brass With A DuraFlex Bumper. The Rockwood 461L Kick Down Door Stop Has a DuraFlex bumper provides reliable grip on the floor, The 461L Has a unique assembly design that conceals the axle in the base, 461L Has a 5" Projection And Is Ideal For use with doors up to 3" door-to-floor clearance.