Craig Frames B102 17x22-Inch Mat, Single Opening for 13x19-Inch Image, Hollyhock with Cream Core MAT SIZE: This matting fits a 17x22 frame. (Frame not included) MAT OPENING SIZE: This mat opening displays a 13x19 inch photo/print/image. (Actual opening size is 12.5x18.5 inches) Hollyhock color; smooth finish (minimal texture) Light cream core; white backing; pH neutral; 0.05 inch thick This listing includes (1) custom-cut, single-opening mat. (Please review outside dimensions and opening size before making purchase)