Archival Methods Pre-Cut Exhibition Mats - (9 x 12" for 8.5 x 11" Print with 5.5 x 8.5" Window, 5-Pack)

This 5-pack of Archival Methods Pre-Cut Exhibition Mats consists of 9 x 12" mats for 8.5 x 11" prints with a 5.5 x 8.5" window that are made of Bright White 100% cotton museum board. The 4-ply beveled window has 2-ply backing board hinged to the window on the long side with linen tape. Window openings are centered for either vertical or horizontal use.