elmer s 950053 - cfc-free polystyrene foam board 30 x 20 blue with white core 10 carton
colored foam board accepts markers and can be screen printed or painted . white 3 16 polystyrene core is cfc-free and cuts cleanly with an x-acto knife sold separately . . art board type foam material s cfc-free polystyrene foam core color s blue surface white core assortment n a.