Color: Black - Open Close Sign, Open Closed Sign, Open Signs Privacy Slide Door Sign Indicator for Business Storefront, Restroom, Office Door, Wall, Window, Restaurants, Retail Salon Shops (Black) Clear and eye-catching design with clearly printed text. One side features a red background and the other a green background, creating high visibility and contrast. Offers two installation options: can be placed directly on magnetic surfaces or attached to non-magnetic surfaces using the included adhesive tape. Easy to install without tools. Constructed from durable aluminum with a quality acrylic interior. Lightweight, portable, and waterproof. More resilient than plastic. Features a sliding mechanism that allows quick and smooth transition between "Open" and "Closed" states. Simply slide horizontally to change the display. Ideal for use on shop doors, office doors, meeting rooms, home offices, dorm rooms, restrooms, and other areas where occupancy status needs to be communicated. Also suitable for use in retail spaces, salons, exhibition areas, recording studios, and public service buildings. The sliding indicator clearly shows room status as either OPEN or CLOSED.