Studio 500, Set of 2-Value Pack, 27 by 41-Inch Poster Collage Poster Frame holds 22 assorted size openings. It comes with a thin dye cut mat. The frame is finished in silver aluminum, with plexiglass and a film for protection. This frame is from our Modern Collection and it is called The Contemporary Frame EPF305 and it can be mounted. Molding Size: Large with molding 29″w x 42.75″l x 1″d. Please see image number 2 for sizes for each window.