The BCW Comic Book Showcase Holder is made of high quality, crystal clear polystyrene and a strong black polystyrene back. Features a 2 piece design, with a wall mountable back. Crystal clear Polystyrene shell. Black back to frame your comic. Wall mountable. Holds silver comics up to 7 x 10 1/4. Dimensions: 8 7/8 x 11 3/4.