A system for mounting an object within a vehicle. The system has a housing, a pair of rotatable objects at least partially received within a respective opposed end of the housing, a pair of locking elements within the housing and movable between a locked position in which they exert a locking force against a respective rotatable object, and an unlocked position in which the locking element does not exert the locking force against the respective rotatable object. A handle extends from the housing and is coupled to the locking elements through a rigid linkage within the housing. The handle is pivotable between an extended position in which the handle moves the pair of locking elements via the rigid linkage to the unlocked position and a locked position in which the handle moves the pair of locking elements via the rigid linkage to the locked position.