Diploma Tassel Shadow Box 11x17.5 Frame for 8.5x11 Certificate, Diploma, or Photo. Overall frame size: 12.25 x 18.75 x 2 inches Includes a White Core Double Mat (Black over Gold color) . Double Mat has 2 opening sizes: one 8x10.5 (for 8.5x11 Diploma/Certificates) & one 8x2.5 (for Displaying Tassel) Inside Includes a Tassel Hanger to Display your Tassel. Frame contains Real Glass.