Material The invisible sliding door lock is made of zinc alloy, and the surface is electroplated with silver powder coating, which is comfortable to handle, corrosion-resistant, oil-proof, and anti-fouling. Specifications: Latch length: 6-5/16 in, width: 1-3/4 in. Suitable for 1-3/8 inch (about 4.4 cm) ~ 2 inch (about 5.1 cm) thick door panels. Lock body length: 3-1/8, width: 2-5/16. Thoughtful design This invisible pocket door lock has a deepened handle groove, which makes it more comfortable to open and close the door without collision. The sturdy knob turns smoothly without any tingling. Installation and application are easy to install, and there are detailed installation instructions in the package (not necessarily in Chinese). This wooden sliding door lock is suitable for sliding doors in bedrooms, kitchens, barns, garages, cabins, etc.