UNIVERSAL COMPATIBILITY: Please check the dimensions of your garage door before purchasing. Highly responsive team is available to provide prompt assistance within 24 hours ENHANCED SECURITY: This heavy duty garage side provides extra protection at night, vacations, or in theft deterrent situations and is sturdy enough to provide peace of mind PREMIUM COMPONENTS: Constructed of SPCC steel and blue plating for added durability and rust resistance and long life under various conditions EASY INSTALLATION: Features easy setup with 4 self-tapping screws, suitable for most garage doors and can be mounted on left or right side for flexible placement INTERNAL OPERATION ONLY: Mounted on a vertical track, the deadlock can only be operated from the inside and serves as an additional layer of security against unauthorized access, Manufacturer: LEMEIGUO