Golden State Art, Pack of 50 11x14 Metallic Gold Picture Mats Mattes with White Core Bevel Cut for 8x10 Photo Pack of 50 11x14 Metallic Gold Picture Mats Mattes with White Core Bevel Cut for 8x10 Photo This item comes with 50 mats The 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). The mats are beveled cut with white core and 4-ply thick (about 1.4 mm or 1/16 inch).