A black chalkboard is an excellent tool for restaurants to stylishly and diversely advertise their daily specials and menu. Its ease of cleaning and reusability allows restaurants to quickly update information, keeping the current offerings always up-to-date. The contrast between the black background and colorful chalks highlights the writings, making the offers attractive to customers. It can be flexibly used both indoors and outdoors, helping restaurants to attract the attention of potential customers from afar. The black chalkboard is not only practical but also serves as a decorative element, contributing to the restaurant's unique atmosphere and visual appearance.