GHOSTLINE Foam Board in white features extruded polystyrene foam sandwiched between two white paper layers with a subtle 1/2" grid, creating a lightweight yet sturdy and rigid surface. Perfect for crafts, school projects, framing, mounting, displays, posters, and exhibits, these easy-to-cut sheets offer a smooth finish that works well with various media, including paints. Each sheet measures 22" x 28" and is 3⁄16" thick, providing reliable support for your creative and presentation needs.