You are purchasing a New GSRF, Loc-it coupler lock for a 2 5/16 ball coupler. This is for stamped couplers up to 4 1/2" only. Will not fit cast or forged couplers. As you can see, the body of the coupler is of Heavy Welded Tube Steel. It also comes with a welded "Anti-Tilt" angle to keep the lock from tilting forward. This comes with a 304 Stainless Steel Disk lock with 2 keys as shown. The lock is heavy duty, weather proof which is anti-rust and corrosion resistant. This is a very secure way of locking the coupler on the trailer so thieves have no way to tow your trailer away. The lock as you can see, is in its own welded, closed box to ensure of breakins fo any kind. This does not fit Slide Lock Couplers !! This lock comes with Free Shipping to the lower 48 states. A 90 day Factory Warranty included. Made in good old USA. Color may change. All; materials made in USA. If returned, buyer pays return shipping fees. Channel, stand, and coupler are for display ONLY, the sale does not include these mentioned. Does Not Fit UFP Atwood Couplers !! Display stand, bolts and coupler are for demo purposes only and are not included in the sale..... Please check out our other listings for coupler locks if you have not seen what you want in " See other Items". Note: Coupler must be a total width of 4 1/2" or less to fit housing. No International Shipping Please.