● Set of 100 White 5x7 WhiteCore Picture Frame Mats ● High Quality Mats ● Opening size is 3.5" x 5.5" inches for 4x6 Pictures ● Mats are beveled cut and are 4-ply thick (1.4 mm or 1/16 inch) ● All acid free, perfect from hobbies to art gallery exhibits.
