Upgraded 2-in-1 High-Quality Door Lock: This 90/180-degree barn door lock can be installed at a 90-degree or 180-degree angle, saving more space. Ideal for bedrooms, doors, bathrooms, gates, barns, cabins, windows, closets, kitchens, offices, barn door locks, and much more. Durable Material: This high-quality latch lock is made of zinc alloy, and the surface has undergone a multi-layer polishing process, making it moisture-resistant and corrosion-resistant. It will not rust or discolor, ensuring long-lasting and safe use. 2.5 mm Thick Locking Gasket: The gasket is made of solid aluminum alloy material; Thickness: 2.5 mm; Length: 80 mm; Width: 25 mm; If the door is not flush with the frame/wall, the sliding door lock can be installed by adding shims (for example: if the door gap is ≤ 2.5 mm, add one 2.5 mm shim; if 2.5 mm door gap ≤ 5 mm, add two 2.5 mm shims). Quick installation and maintenance: The shed door lock is suitable for mounting on the left or right side and for mounting at angles of 90° and 180°. Simply attach the bolt to your door frame, mark the height and mounting holes, and secure the bolt to the door frame with the included screws. Multi-scene use: Suitable for most doors, suitable for bedrooms, balconies, garages, windows, sheds, sliding doors, kitchens, bathrooms, closets, drawers, pet locks, etc. Shed door locks provide a security measure for your home, prevent unexpected break-ins, and ensure that young children and pets are safe and protected.