1、Overall Material: The whole is made of quality zinc alloy, with powder coating surface , more high end and generous with more hand feeling. 2、Rust and Slip Proof: Can be used outdoors or in humid areas for a long time, and it is a better choice for door locks such as motorhomes and yachts. 3、Internal Material: The spring bolt, safety catch and shaft are made of zinc alloy, greatly improve the durability and strength of the sturdy lock. 4、Strong Protection: The door lock cannot be easily damaged to make sure the safety of items and make the property in the vehicle more safer and confidential. 5、Complete Accessories: Come with accessories and screws required for installation, and two keys, easy to install without purchasing additional accessories.