Made of stainless steel and aluminum alloy, durable and reliable, with a long service life. Surface mount, security fixing screws included. Easy to use: simply press the lock cylinder to lock, turn the key clockwise to unlock. Suitable for interior and exterior doors, French windows, metal windows, and closets. Package contents: 1 multi-function door bolt. The robust construction of these stainless steel and aluminum alloy door locks ensures the gate latch is durable and reliable, making it perfect for outdoor use. The attractive finish of the door locks with a distinctive housing also allows for indoor use. Comes with all fixings and fasteners such as screws and 2 keys. Can help secure your yard, which is essential if you have children or pets. The key lock on the gate bolt ensures that unsupervised children or pets cannot leave the safety of your property without parental permission when secured out of reach. It can be used as a garage door lock, patio door lock, sliding door lock,