Golden State Art, 8x20 Black Photo Wood Collage Frame with Mat displays (3) 4"x6" pictures IMPORTANT NOTES: IT COMES WITH REAL GLASS. Not Acrylic! This picture frame comes with single mat with 3 openings for three 4x6 pictures Picture size: (3) 4x6 pictures (with mat, white color, Opening size: 3.5x5.5) Bevel cut mat is white core and 4-ply thick (about 1.4 mm or 1/16 inch). Frame is 1'' wide and 0.75'' thick molding. Can hang vertically or horizontally.