Presentations and projects will be taken to a whole new level with foam core boards.The smooth bright color surface has a slightly glossy finish that easily accepts markers crayons paints and adhesives.Lightweight and rigid foam board cuts easily with a knife or razor.Perfect for mounting photographs and artwork 3-D modeling signage poster making and more!Assortment contains 5 sheets of each color: red blue black green and yellow.Boards measure 20 x 30 with 3/16 (5mm) thick dense white polystyrene foam core and white on back of sheet.