The door security chain latch is designed to identify a caller before the door is completely released and to prevent forced entry; When you purchase, please get the discount code on the product page to get a better price. Allows the door to open at a gap of approximately 30 to 50 mm providing great security outdoors; The heavy-duty steel frame makes it incredibly sturdy against violent entry to maintain security; No drilling or chiselling required for installation. After installation, it cannot be unlocked from the outside. The security lock provides reliable protection for hotels, hotels, doors, storage rooms, windows, etc. . Child Safety Lock The secondary safety lock can also be placed out of the reach of children so that they cannot open the door themselves and enter or exit dangerous areas. Positioning of the Ball Steel Unique locking design holds the locking arms in place so they don't swing for added security. Specification: - Material: premium stainless steel - Color: Satin Nickel - Finish: Beautiful brushed nickel process - Application: Perfect for the home; Desk; hotel; motel; apartment and business How to install: 1. Choose the right location of the door and let its main body aligned with the underbody, then make marks; 2. Fix the main body to the door frame with screws; 3. Depending on the brand, secure the underbody with screws to the door; 4. Close the door and test the product. Important note during installation: 1. The door and door frame must be at the same level; 2. If the door is concave, the gap between the door and the door frame cannot be greater than 0.5 cm; Contents: 2 x Door Security Chains 14 x screws Seuais