1. The panel is wider and thicker, the bonding is more tight and solid, not easy to warp and fall off 2. Press the safety button to open the chain, preventing outsiders from reaching inside and hooking down the chain to open the lock 3. 3mm solid chain, tightly twisted and welded, high strength to prevent pulling and breaking 4. Polished plating process, uniform color, glossy, suitable for a variety of home decorating style 5. Two installation options: hole-punching installation (with screws), hole-punching installation is stronger, stable and reliable; nail-free installation (using nail-free adhesive), strong adhesive applied after installation to maintain ventilation and vacant 5 days before use 6. Outdoor door locks perforated installation, lime walls, wallpaper walls, wooden doors, etc., it is recommended that perforated installation; can not be perforated or are not willing to damage the home environment, it is recommended that nail-free installation 7. Material: stainless steel 8. Size: about 12.6 x 2.45cm, chain length about 18.5cm
