[High-Quality Material]: This door lock is made of high-quality nylon plastic, is rust-resistant, well-made, has a smooth surface, and is durable. It can be installed directly on the door frame or smooth door using surface-mounted screws. [Easy to Identify]: The bright green and red indicators are easy to see, making it easy to install and suitable for partition doors. [Wide Application]: Suitable for public toilets such as airports, train stations, hospitals, shopping malls, and office buildings. It can also be used in toilets, changing rooms, and bathrooms to indicate whether the space is vacant or occupied. [Unique Design]: This lock is ideal for preventing accidental knocking when the door is closed. The vacant (green) / occupied (red) indicator clearly shows everyone from a distance if the toilet is occupied. [Easy to Use]: Thanks to our bathroom indicator door lock, your customers can easily find the bathroom or changing room without waiting or knocking to confirm someone is there, offering them unlimited convenience and practical services. Sold by Bianco FR