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. The font is printed clearly, with a red background on one side and a green background on the other. The contrast between the two colors makes it highly visible in any setting. Magnetic and adhesive sticker options provide two installation choices. Place it directly on any magnetic surface or use the included tape to attach it to non-magnetic surfaces. Easy to install without tools. Portable and durable. Made of aluminum with a quality acrylic interior. Lightweight, waterproof, and more durable than plastic. Features a sliding mechanism that allows quick and smooth changes between "Open" and "Closed" states. Simply slide the indicator horizontally to display the desired status. Suitable for use on shop doors, office doors, meeting rooms, home offices, dorm rooms, and more. Ideal for indoor or outdoor use in retail spaces, salons, restaurants, recording studios, exhibition areas, and public service buildings. Clearly indicates room status with a simple, intuitive design.