The BulletProof Hitches Extreme Duty Coupler Lock delivers maximum protection against trailer theft. Built with a hardened solid steel locking bar and a pick-resistant locking mechanism, this heavy-duty lock is designed for serious security in demanding towing and storage environments. Detailed Information: Compatible Coupler Sizes 1-7/8", 2", 2-5/16" Locking Bar Diameter 1" solid hardened steel Security Type Pick-resistant lock cylinder Finish Heavy-duty corrosion-resistant coating Weather Protection Rubber cap over locking mechanism Keys Included 2 keys Brand BulletProof Hitches Part Number EDCOUPLERLOCK Fitting: Universal fit for trailer couplers sized 1-7/8", 2", and 2-5/16". Designed to work with most standard trailer coupler styles. Features: Extreme Duty Security: Built to deter theft in high-risk environments. 1" Hardened Steel Bar: Provides exceptional resistance to cutting and prying. Pick-Resistant Lock: Adds an extra layer of protection against tampering. Universal Compatibility: Fits all common trailer coupler sizes. Weather-Resistant Design: Rubber cap protects the lock from dirt, moisture, and debris. Two Keys Included: Convenient backup key provided. Product Overview: The BulletProof Hitches Extreme Duty Coupler Lock is the ultimate solution for safeguarding your trailer. With a solid hardened steel construction, universal fitment, and a pick-resistant locking mechanism, it offers unmatched protection whether your trailer is parked, stored, or left unattended.