TOTALLY NEW - NO NONSENSE APPROACH TO TRAILER SECURITY!!! This lock is the companion lock to the Ft. Knox Gooseneck latch lock and prevents a thief from simply dropping your gooseneck latch tube, inserting their own and driving off with your trailer. Made with 3/16" fully welded steel with welded hinges and hinge pins. Heavy yellow powdercoat finish which screams "stay away" Made in America. Limited Lifetime Warranty against manufacturing defects. Unlike all other set bolt locks, this one is BOLT CUTTER PROOF and can only be defeated with power tools or a cutting torch. Masterlock style surround hasp application which accepts all "puck" style locks. This hasp and lock combination has proven itself on construction site storage containers all over America for decades. Don't trust your trailer and equipment to just any lock. Think Ft Knox Locks. Watch our lock defeating videos, it's actually silly how easy most locks are to defeat - not so with Ft. Knox Locks. Lifetime warranty against manufacturing defects. Powdercoat is not warrantied. 25% restocking fee and no refund of original shipping and return shipping is on purchaser for products which are return for any reason other than defective or broken.