Picture is shown with mullions; this kit does not include mullions. Sized to fit the standard 3/8 wall with 3" x 6-13/16" opening. It can be hinged to swing in or out, from left or right, and is easily modified to use as an interior door. Kit includes: Real brass hinges, brass plated door knobs, brass-plated escutcheon plates, clear glazing and interior and exterior casings. This is a kit, so some assembly is required. "