This item is a set of privacy signs, which are not easy to fade, safe and practical. Sturdy, not easy to break, made of premium-quality materials. Slide the slider to change green and red states, clearly indicates whether the room is full or empty, giving you a better understanding of the room's status. Generous and concise design guarantees its practicality and popularity. Features - Material: Organic glass. - Color: Black. - Size: About 10.00X4.00X0.80cm/3.93X1.57X0.31inches. - Clear informed: Let you stop guessing and questioning the status of your office room. - Highly visible: The privacy signs can display two states, which is a good reminder of the usage of the room. - Practical reminder signs: The indicator signs can bring more convenience to your daily life and work. - Quality selection: Office status indicator sign are not easy to fade, safe and practical. - Various occasions: Suitable for offices, conference rooms, lounge rooms, etc. Packing list: 1 x Slide Door Sign