1、Parameter: The size of this lock is 119x85mm, the left and right keyhole distance is 89mm, and the upper and lower keyhole distance is 75mm, which is compact designed.2、Unique Design: The crescent shaped lock cylinder adopts a B grade atomic structure, and the lock head is an A grade cross shaped core, which is highly anti theft.3、Key: The key is thickened to prevent sprains and breaks, the teeth are clean, the lock body is smooth, and it is equipped with 5 keys to prevent loss.4、Material: Made of high strength iron chrome plating and zinc, heat treated and hardened to prevent sharp unlocking, impact resistance and breaking strength.5、Wide Application: This lock kit is suitable for security doors, dormitory doors, entrance and exit doors, school engineering, construction projects, hotel projects, etc.