1、Premium Material: Miniature door release button switch, made of ABS plastic material, fireproof, flameproof, safe to use and durable. 2、Durable Shell: The push exit release switch has a sturdy housing with certain impact resistance, external force resistance and long term durability. 3、Simple and Convenient Installation: Fixed with screws, can be installed on or beside the door. Press the button to open the door and go out. 4、Exquisite Workmanship: Small size, elegant and high end, suitable for access control systems, used in residential, commercial and industrial fields. 5、Wide Application: This door release button can be used for any access control, usually used in offices, banks, gas stations, department stores, etc.