CURT SecureLatch Channel-Style Lunette Ring, 40,000 Pounds, 3-Inch ID Model 48626CURT SecureLatch Channel Style Lunette Ring, 40,000 Pounds, 3 Inch ID Model 48626 The CURT SecureLatch lunette ring offers enhanced security and maximum versatility. Its integrated locking pin helps prevent coupling and theft when your trailer is left unattended, featuring holes in the bottom to accept a padlock. The pin can also be turned 90 degrees to allow you to hitch up your trailer. This lunette ring also offers flexible height adjustment. It