Mat Board Center, Acid-Free Pre-Cut 16x20 Picture Mat Set. Includes A Pack of White Core Bevel Cut Mattes for 11x14 Photos, Backers & Clear Bags

Golden State Art, Pack of 5 White Pre-Cut 16x20 Picture Mat for 11x14 Photo with White Core Bevel Cut Mattes SETS. Includes 5 High Premier Acid Free

Studio 500 Pack of 25 Black Pre-Cut 16x20 Picture Mat for 11x14 Photo with White Core Bevel Cut Mattes Sets. Includes 25 Premium Acid Free Mats & 25 Backing Board

Golden State Art, Pack of 10, Acid-Free Mixed Colors Pre-Cut 16x20 Picture Mat for 11x14 Photo with White Core Bevel Cut Mattes Sets.

Pack of 10 Acid-free Precut White Color Mats 5x7 Mats Pre-cut for 4x6-inch pictures, photos, artworks Mat Opening Size: 3.5” x 5.5” White Core, 4-ply

Mat Board Center, Pack of 10, 5x7 for 4x6 White Color Mats - Acid Free, 4-ply Thickness, White Core - for Pictures, Photos, Framing

16x20 White Picture Mats Mattes Matting with White Core Bevel Cut

Mat Board Center Crescent 11x14 Black Picture Mat Sets for 8x10

Golden State Art, Acid Free, Pack of 25 White Pre-Cut 11x14 Picture Mat for 8.5x11 Photo with White Core High Premier Bevel Cut Mattes

The opening size is 10.5x13.5 for 11x14 print. The mats are beveled cut with white core and 4-ply thick (about 1.4 mm or 1/16 inch). The re-sealable adhesive strip of the clear bag is below the opening of the bag instead of on the flap.

10 of 20x24 White Pre-Cut Acid-Free Whitecore Mat for 16x20 + Back+Bag

Golden State Art, White Pre-Cut 16x20 Picture Mat for

Mat Board Center, Pack of 10, Premier Acid-Free Pre