SIZE: The office sign is 8.3x2.4 inches and it would perfectly fit a variety of door sizes. See included photos for inspirationPREPARATION: Before installation, wipe the surface and clean it from dust. The surface must be dry, clean and smooth.INSTALLATION: The installation doesn't require any special skills or additional tools. To install, remove the protective layers from the self-adhering strips on the back of the sign. Flip the sign with the self-adhering strips facing the surface that you want to install the sign on. Firmly press the sign to the surface and hold for five seconds.CARE: Easyto clean, simply wipe with a soft cloth.