Feature:1. High Quality Material: Door exit button is made of high quality stainless steel material, rustproof, high hardness, sturdy and durable.2. Installation: The size of door release button is approx. 86x86mm/3.39x3.39in. Suitable for installation on hollow door frame and embedded electrical box.3. Professional Design: Professional manufacturing, exquisite workmanship, brushed treatment, comfortable hand feeling, have a long service time.4. Easy Operation: Easy to operate, push the button to instantly open the door, convenient for using, save your time and energy.5. Wide Application: Door release exit button is widely used in access control system, such as office, bank, gas station, department store, etc.Specification:Item Type: Door Exit ButtonMaterial: Stainless SteelApplication: Widely used in access control system, such as office, bank, gas station, department store, etc. Suitable for installation on hollow door frame and embedded electrical box.Size: Approx. 86x86mm/3.39x3.39in.Package List:1 xDoor Exit Button2 x Screw