Beveled white mat is archival quality and acid-free. 13" x 11" has a glass front and is also backed with an easel for tabletop display. 20" x 16" has a glass front. 42" x 28" has a Plexiglas® front. Alder wood frame. Inkjet-printed image on 270-gram paper. Backed with D-rings for wall mounting. Clean glass with standard glass cleaner. Clean Plexiglas® with a soft, damp cloth. Wipe frame with a soft, dry cloth.