Features:[Luminous Design] Barn door lock adopts luminous design, so you can clearly see the location of the door lock at night. It must soak up sunlight in bright places through the day, ensuring remove darkness from at night.[Premium Material] Sliding door latch lock is fabricated from zinc alloy, with matte black finish treatment, antioxidant, rust and corrosion resistant, hard to interrupt and deform, strong and durable.[Safety & Privacy] Gate bolt latch will not robotically unlock due to compelled access outside the door. The lock can give additional safety, security, and privacy, although others have the key, they can't enter when this lock installed.Specification:Material: zinc alloyColor: blackLength: 80mm/3.15 inchWidth: 25mm/0.98 inchHole spacing: 56mm/2.21 inchApplication: sliding doors, barn doors, windows, etc.Package includes:1x Barn Door Lock4x Screws