A handle assembly is used with a pick-up truck tailgate. The handle assembly comprises a guide tube with an open end, a handle that is housed within the guide tube and a pivot assembly. The pivot assembly comprises a pivot pin connected to one end of the handle and a locking pin. The handle is moveable within the guide tube between a retracted position and an extended position. While in the extended position the handle passes through the open end and the handle may pivot about the pivot pin to move to a support position. When the handle is in the support position, the locking pin can engage the handle and releasably lock the handle in the support position. The guide tube is configured to be secured within a tailgate of a pick-up truck.