CURT Rebellion XD Tongue And Hitch Lock SetThis lockset for the Rebellion XD ball mount replaces standard clips and hitch pin for increased security. It includes a hitch lock and tongue lock. The hitch lock is stainless steel and fits 50mm Square Hitch. The tongue lock is constructed from cast aluminum and fits over the vertical shank pins of the Rebellion XD to lock the attachment in place. Both locks feature a 1 4 turn activation for convenience, and they are keyed alike for easy, one key