■ Product Door Lock, 3-Digit Dial, Flat, Fluorescent, Retrofit Room Key, Sliding Door, Interior Door, Retrofit Key, Rotary Type ※ Please consider purchasing if you don't mind that it has been stored at home. ※ Installation method (see p2) ※ Password setting (see p3. p4) ※ No instruction manual is included. 【High-Quality Material】 The product is made of strong and durable zinc alloy, which is not easily deformed and is moisture-proof and rust-proof. It can fully guarantee quality and service life. 【Luminous Design】 The product's door lock logo adopts a luminous design. The lock logo is white during the day, but it changes to night light mode at night or in dark places, clearly displaying the position of the lock, making it ideal for homes with elderly people or children. 【Safety】 It can effectively prevent theft, and even if the gap in the door is a little large, it cannot be opened with external tools. You can set a password, which increases the anti-theft effect. (Note: This product is only suitable for indoor installation) 【Easy Installation】 Two installation methods: 1) Anti-theft, screws are required. Mark the installation position, turn the screws, tighten with a screwdriver, and then turn the crossbar, and the lock cover can rotate 45° to lock the screws. (2) To prevent babies and pets from getting lost, adhesive is required. Mark the installation position, apply adhesive to the bottom of the product, attach it to the installation position, and fix it, and the installation will be complete in 72 hours. 【Wide Range of Applications】 Suitable for doors, cabinets, drawers, sliding doors, screens, etc. It can also be applied to wooden doors, aluminum alloy doors, metal doors, and other types of doors and drillable windows. For hard doors, you may need to pre-drill holes for installation.