- Versatile Design: The Universal Coupling Lock Set for trailer locks is compatible with multiple connection sizes, including 1-7/8", 2", and 2-5/16". This ensures it works with a wide range of trailers, providing peace of mind when securing your valuable cargo. - Enhanced Security: Crafted from durable steel, this adjustable security lock offers robust theft protection. Its strong construction and dependable locking mechanism ensure that your trailer remains securely attached to your vehicle, even in high-risk areas. - User-Friendly Operation: Say goodbye to complex installation processes. This trailer coupling lock is designed for easy use. Simply adjust the lock to fit your specific hitch size, insert the key, and lock it in place. It's that simple! - High-Quality Materials: Made from a combination of aluminum alloy and iron, this coupling lock delivers exceptional strength and durability. Its solid build guarantees long-lasting performance, making it a reliable choice for all your trailer security needs. - Practical Applications: Ideal for securing your trailer when parked at home or on job sites, this lock ensures your equipment stays safe. Additionally, it can be essential during long trips, providing an added layer of protection against theft. - Key Features: - Compatible with various trailer hitch sizes. - Robust steel construction for ultimate theft protection. - Easy adjustment and operation for user convenience. - Durable aluminum and iron materials for long-lasting use.