7" x 9" 5/8" MDF, Unisub®, Plaque, with Black Ogee Edge, Imaging Area: 5.875" x 7.875". MDF is Medium Density Fiberboard. Keyholed for landscape or portrait orientation. Gone are the days of boring two-color plaques... customize your plaque with photo-realistic images and text! For production of black edged MDF plaques, we recommend the Mohawk® Ultra-Mark™ 2000 Touch Up Marker, #2 Black, sold separately. This paint pen contains black ink that blends well to repair and conceal small areas on black Unisub plaques with small spots, lines or errors.