Euro Designed Office Directories come in various sizes from 3 slots to 24 slots. Sign assemblies are stacked to create multiple lines. Screws in the top lock the entire group of sign assemblies in place. Simply remove the top screws and slide sign assemblies out for quick change. The directories are available in satin silver, matte black or polished rose gold. The laser engraved slots come in silver and black. blue and white, black and white, brown and white or gold and black.