Disclosed herein is a single arm adjustment mechanism for supporting an object, the single arm adjustment mechanism comprising: a support arm; an upper adjustment assembly coupled to an upper end of said support arm, said upper adjustment assembly capable of being coupled to said object such that said object pivots about a first axis; and a lower adjustment assembly capable of being fixed to a support and pivotally coupled to a lower end of said support arm such that said support arm pivots about a second axis parallel to said first axis in order to maintain said object in a desired angular orientation with respect to said support.