Golden State Art, Pack of 25, 11x14 White Picture Mat Set - Fit 8x10 Photos/Prints - Acid Free Bevel Pre-Cut White Core Mattes - with 25 Backing Board & Clear Bags
Brand: Golden State Art
Color: White

Backing is also 4-ply thick with both side white. Matboard can be used for matting photos, art, and needlepoint. Also great for crafts, backboards, signs, children's projects, galleries, to sell, shows, art shows, and school projects.

25 White 11x14 mats for 8x10 with backing + bag
This item comes with 25 single mats, 25 backing, and 25 bags.
Mat opening size is 7.5"x9.5" for 8x10 print.
The mats are beveled cut with white core and 4-ply thick (about 1.4 mm or 1/16 inch).