topseller100, Pack of 50 sheets 16x20 UNCUT mat matboard WHITE Color 50 sheets 16x20 UNCUT mats / matboards WHITE Color This package comes with 50 uncut matboards Great for cutting your own mats for photos, art works, or prints The front is white and the back is white These are Acid Free matboards, Standard 4 ply: 1.4 mil or 1/16 inch.