Check the listing for details. BLAYLOCK GOOSENECK COUPLER LOCK COMPLETE SECURITY STYLE TL-57. Condition: New. Listed at 130.00 USD. BLAYLOCK GOOSENECK COUPLER LOCK TL-57Features:Set of 2 coupler locks deters theft of your gooseneck trailer that has an adjustable RAM couplerCoupler latch lock fits around base of trailer coupler to prevent access to latchNarrow end slides over the coupler bracket near the handleSet screw lock prevents removal of inner tube from outer tubeSecures around the set screw on the tubeSteel pins slide through the brackets to secure the locks to coupler's base and set screwStainless steel padlocks with hardened steel shackles secure pins in placeAircraft-grade, lightweight aluminum construction is strong and resists wear and corrosion4 Keys are includedMade in the USASpecs:Application: most adjustable RAM gooseneck couplersCoupler latch lock dimensions: 11" long x 6-1/4" wide x 4-1/2" tallSet screw lock dimensions: 4" long x 4" wide x 5" tallPin diameter: 3/4"After it has been secured, this set of Blaylock EZ Locks renders the latch and the inner tube of your trailer's adjustable, cast base RAM gooseneck coupler inoperable, ensuring your peace of mind. The base lock secures the coupler's latch. And the set screw lock prevents the removal of the inner tube from the outer tube, providing complete security. Simply position the latch lock around the base of your coupler, with the narrow end of the lock fitted over the coupler bracket near the handle. Position the other lock around the set screw. Then insert the 3/4" diameter steel pins through the holes in the locks and secure the pins in place with the included Master Lock padlocks. THIS ITEM IN NEW IN RETAIL PACKAGING. DON'T MISS OUT ON A GREAT DEAL!