Ten Single Mats With Acid Free Backing Boards And Crystal Clear Self Seal Bags, Featuring A Picture Opening For A 11X13.5 Inch Photo, To Fit In A 11.7X16.5 Inch Picture Frame. Photo Openings Are Beveled Cut 0.5" Smaller Than The Art Size Advertised To Overlap The Photo And Help Keep It Securely In The Frame. Made To Display A 11X13.5 Photo And Fit In A Standard 11.7X16.5 Picture Frame. Vibrant Navy Color Acid Free Picture Matting. Great Replacement For Damaged, Dirty, Or faded Matting In Your Old Frames. Premium Quality: Our Precut Photo Matboards Are Acid Free & Precision Cut With A 45 Degree Bevel By Machine For Perfect Corners And No Over-Cuts Every Single Time! Precut Acid-Free, Professionally Bevel Cut Matte Board. Custom Frame Shop And Archival Quality. All Of Our Precut Matboards Are Proudly Manufactured In The Usa.