Specification Brand : CountryArtHouse BulletPoint1 : 26x26 Photo Mat With Bevel Cut Square Opening for 21x21 Photos BulletPoint2 : Charcoal Acid-Free Photo Mat BulletPoint3 : Includes 1 Single Matboard Show Kit With Acid Free Backing & Clear Bag Color : Charcoal ItemName : CountryArtHouse Charcoal Acid Free 26x26 Square Picture Frame Mat with White Core Bevel Cut for 21x21 Pictures - Fits 26x26 Frame - Pack of 1 Matboard Show Kit with Acid Free Backing & Clear Bag ItemPackageDimensions_Height : 4 inches ItemPackageDimensions_Length : 2 inches ItemPackageDimensions_Width : 3 inches ItemPackageQuantity : 1 ItemTypeKeyword : photo-mat-boards Manufacturer : CountryArtHouse Material : Photo Mat Board ModelName : Mat_B161_26x26-20.5x20.5_Square_(1)-SETS ModelNumber : Mat_B161_26x26-20.5x20.5_Square_(1)-SETS NumberOfItems : 1 PartNumber : Mat_B161_26x26-20.5x20.5_Square_(1)-SETS ProductDescription : Our acid-free Charcoal matboards are 4-ply and feature a white core. With an overall size of 26x26, these mats with Square openings fit perfectly into 26x26 frames and are bevel cut to showcase your 21x21 photos. Actual mat opening size is 20.5x20.5 inches so that it may safely and securely house your 21x21 photo, artwork, needlepoint, sign, etc. This pack includes 1 Single Matboard Show Kit With Acid Free Backing & Clear Bag. Proudly made in the USA by Country Art House! ProductSiteLaunchDate : 2023-09-05T00:30:48.095Z Size : 1 Matboard Kit With Acid Free Backing & Clear Bag SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1