Elmer"s Products Inc Sturdy Foam Board, 3/16"Thick, 20"x30", 10/CT, Black/WhiteFoam board is ideal for presentations, signs and school projects, Lightweight, rigid design resists warping, Smooth, clay-coated surface can be screen painted or used for mounting, Foam board is cut easily to the size you need, Resilient 3/16" thick core resists dents and is free of chlorofluorocarbons (CFC-free), SKU: DLRDY084871