Golden State Art,Pack of 200, 12x12 White Backing Board with Brown Core

The opening size is 3.5x5.5 for 4x6 print. Color: WHITE The mats are beveled cut with white core and 4-ply thick (about 1.4 mm or 1/16 inch), The backing is white on both side The re-sealable adhesive strip of the clear bag is below the opening of the bag instead of on the flap. The mats are beveled cut. The backing is also 4-ply.

Golden State Art, Acid Free, Pack of 10 5x7 White Picture Mats Mattes with White Core Bevel Cut for 4x6 Photo + Backing + Bags

Golden State Art,Pack of 200, 11x14 White Foam Board Backing 1/8

18x24 Pre-cut Mat with Whitecore fits 12x18 Picture + Backing +

Golden State Art,BOGO 11X14 White Frames For 11x14 Picture and

Golden State Art, Pack of 25, 12x12 Black Picture Mats

Give your art a finished look by adding a backing board behind your art, print, or photo mats. A great choice to make your photo mats more sturdy by

Pack of 200, 12x12 White Backing Board with Brown Core

This item comes with 50 single white mats, 50 backing, and 50 bags. The opening size is 3.5x 5.5 for 4x6 print. Color: White The mats are beveled

Golden State Art, Pack of 50 White Pre-Cut 5x7 Picture Mat for 4x6 Photo with White Core Bevel Cut Mattes Sets. Includes 50 High Premier Acid Free

18x24 Pre-cut Mat with Whitecore fits 12x18 Picture + Backing +

Golden State Art,8x10 Pre-cut Mat with Whitecore fits 4x6 Picture

Give your art a finished look by adding a backing board behind your art, print, or photo mats. A great choice to make your photo mats more sturdy by

Pack of 200, 12x12 White Backing Board with Brown Core