Each Michael Aram metal object undergoes a series of grinding, buffing, and polishing techniques. Variations or 'imperfections' in the product's finish are characteristic of the creation process. Due to this handmade nature, no two pieces are ever exactly alike. Natural & Oxidized Bronze, Nickelplate Wipe with soft clothDo not use abrasive cleaners, steel wool or scouring pads that can scratch and dull metal surfacesNot for use with metal polishDo not clean with any chemical solvents Directions for placing photo in frame Never move tab without loosening screw first as tabmay snap. Loosen screw then move tab. Remove frame back and place in photo Place frame back in place Set tabs in correct position, then tighten screws in place Do not use tab to loosen or tighten screw. A screwdriver should be used.