Westinghouse 7741100 42-Inch White/Bleached Oak Replacement Fan Blades, Five-Pack Easily replace worn or broken fan blades on your existing fan with this convenient five piece set Reversible white and bleached oak finishes complement many ceiling fans Replacement fan blades are compatible with most 42-inch fans Dimensions as shown in Figure-1; A - fan blade outer holes 3-1/2-inches; B - fan blade outer hole to center hole 2-5/8-inches Pre-drilled holes fit most fans, also includes instructions to custom fit where needed.Predrilled holes may not work for all installations. Additional Drilling may be required