High Quality MaterialAluminum Door Lock is made of strong aluminum alloy, sturdy and durable. It is not rusty, corrosion resistant, not easy to deform and can be used with confidence.High Security Performance. Unlike traditional door locks, the Automatic Door Lock is equipped with a spring, which is not easy to open accidentally. It can also be used with a regular padlock (not included) for added security.Easy to Install Spring Locking Bolt simple installation, select installation location, drill holes and tighten the screws to finish.Wide Range of Uses Exterior Door Lock is suitable for family rooms, doors, garages, gardens, bathrooms, closets, kitchens, offices, hotels, etc.Colour: BlackQuantity: 1PCNote:Due to differences in light and screen settings, the actual color may be slightly different from the picture.Please allow for small size differences due to differences in manual measurements.