Constructed of high grade zinc alloy and comes in electroplating finish, anti-corrosion, dust and oil resistant This sliding door Lock is suitable for either left or right handed door, installation step is in the description This door latch lock will give a country look to your wood barn door. Very strong and beautifully made This door lock can be bolted inside or locked outside.When it is bolted inside ,it can be unlocked by key from outside Solid knob, thickened and widened design, more comfortable and convenient, Manufacturer: Hztyyier