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. Quick changes. This sign is a sliding door indicator; one sign displays two states. Simply position it horizontally, and the slider moves easily to show "Open" or "Closed" smoothly and quickly. Multiple uses. Suitable for shop doors, office doors, meeting rooms, home offices, dorm rooms, and anywhere privacy is needed. Also ideal for outdoor exhibitions, recording rooms, and public service buildings. Slide the indicator to display "OPEN" or "CLOSED" for clear communication of room status.