Inside opening for 8x10 photo( actual opening is 7.5x9.5 -cut to give uniform borders and cover edge of photo). Black/off white liner. THESE MATS
ZBEIVAN 11x14 White Picture Mats with Core Bevel Cut
11x14 Mat
Photo Mat 11x14 multi opening for 8x10 photo and 1.5x4 red with black liner
11x14 Mat
Mainstays Linear 11 x 14 Matted to 8 x 10 Rustic Frame, Set of 4
Amanti Art Brushed Nickel Wood Picture Frame Opening Size 11x14 In. (matted To 8x10 In.) : Target
The opening size is 7.5x9.5 for 8x10 print. Color: White over Black The mats are beveled cut with white core and 4-ply thick (about 1.4 mm or 1/16 inch),double mat is two 4-ply mats. 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.
Pack of 20 11x14 White/Black Double Mats Mattes for 8x10 Photo with White Core Bevel Cut + Backing + Bags
11x14 Pre Cut Collage Photo Mat - 8x10 x 1, 3/4x2 x 1 Windows
Somime 10 Pack White Photo Board 11x14 Mat for 8.5x11
Golden State Art, Acid Free, Pack of 25, 11x14 White