1、Wide Application: RV door lock is designed for use in motorhomes and trailers, with a lock hole opening of 3.75in height x 2.75in width x 1.5in thickness, designed with your safety in mind and is not suitable for Class A or C. 2、Durable and Solid Construction: Unlike other fragile plastic RV locks, our trailer door lock is made of metal that is rust resistant and IP67 waterproof, ensuring long lasting use even in harsh outdoor conditions. 3、Easy to Install: Each kit is ready to install and includes 1 RV door lock, 2 mechanical keys, necessary accessories, a user manual, and installation guide. Simply follow the instructions and you can install it quickly. 4、Advanced Locking Technology: RV door lock features advanced locking technology to keep your valuables safe and secure while you're away from your trailer. 5、Peace of Mind: With RV door lock, you can travel with peace of mind knowing that your valuable items are secure and protected. The lock is easy to use and fits snugly onto your trailer.