Description: The retro door lock is modern and contemporary design, very modern appearance. Well-built Lock made of premium aluminum alloy material,bright surface,easy to clean,not easy to rust. Features: Provide excellent security for your home. Use 3 keys for easier opening and installation. Modern and contemporary design, very modern appearance. Well-built Lock made of premium aluminum alloy material, bright surface, easy to clean, not easy to rust. Quality door lever ideal for home,office, hotel, gate, bedroom, bathroom, also as a prefect gift for your friends, etc. Installation: 1. Insert the lock body into the lock hole on the door side, and tighten the two self-tapping screws. 2. Screw the two fixing screws and fixing bolts on the outer plate. 3. Align the two bolts on the outer panel assembly with the pre-drilled holes on the door panel and install the outer panel assembly. 4. Install the inner panel components, gently tighten the two fastening screws, pay attention to adjust the position so that the handle hole, keyhole, square keyhole and keyhole on the panel are coaxial. 5. Insert the lock into the lock hole on the inner panel and insert the locking screw into the hole in the lock panel. Align the locking screw hole and tighten. 6. Insert the square chute in the same direction as the handle fixing screw into the square hole of the lock body. 7. Mount the external handle. 8. After tightening the fastening screws on the inner panel, tighten the fastening screws on the handle. 9. Install the lock box and lock plate, tighten the screws. Specifications: Material: Aluminum Alloy Color: Gold Application: Various interior doors Sewing distance: 4.5 cm Applicable door thickness: 3.5~4.5cm Size:(L) x (W) 21 x 5.5cm / 8.27 x 2.17inch (Application) Door Lock Handle Aperture Size: Approx.17cm/6.7in Package Included: 2 x Door Handles 1 x Lock Body (Random Color) 1 x Lock Cylinder 1 x Lock box 1 x Iron bed linen 1 x Square bar 3 x Keys 6 x Screw accessories Notice: Please allow 1-3cm error due to manual measurement and make sure you do not mind before ordering. Please understand that colors may exist chromatic aberration as the different placement of pictures.Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering..