Color: Black-open close sign Open closed sign, open signs Privacy sliding door sign indicator for business sign, toilet, office door, wall, window, restaurants, salon shops [black) Clear and eye-catching The font is clearly printed, with red background on one side and the other is green background. The difference between two colors makes it very eye-catching on the site. Quick changes This sign is sliding door sign, one sign can show two conditions. Just put it in horizontal position, the slider can easily slide to show open or closed smoothly and quickly. Multiple Uses Suitable for use in any shop door or office door or meeting room or home office or home that wants others not to disturb work indoors. Also suitable for use in outdoor exhibition or recording rooms or public service buildings. By sliding the slider, the display can OPEN or CLOSE, easily and clearly know the state of the room.