It is a heavy-duty commercial-grade exit device that attaches to exit doors on commercial and industrial buildings. High resistance to corrosion, passes a long-time without damaged parts, ensuring its ability to fit in all kinds of places. It can use on the fire door, as a safe exit to ensure that an emergency occurs to help people flee quickly. Mostly suitable for outside opening doors and has smooth curved edges to prevent any injury while using it.Compatible with all door size up to 1140mm in length and can be adjusted height up to 2300 mm. Ideal for airports, command centres, hotels, shopping malls, hospitals, supermarkets, public transport systems, banks, securities, commercial office buildings, factories, and living areas to make it more secure.