4 Pack Foam Board 24"x36", 0.23 Inch Thickness Brown Poster Board, Double-Sided Acid-Free Foam Core Board, Large Lightweight Polystyrene Mat Board for Painting, Display, Craft & School Projects

5.8 mm Thick Sturdy Core and Edge Protection with
Plastic Corners: The 5.8 mm high-density foam core board provides strong support for paintings, presentations, and crafts without bending or warping. Each package includes plastic corner guards and a shock-absorbing design to help prevent shipping edge damage and broken boards upon arrival. Double-Sided Smooth and
Seep-Proof Surface: The kraft foam board features a burr-free, double-sided smooth surface that helps prevent paint, marker, or glue from soaking through. It works well with watercolors, acrylics, and adhesives, reducing uneven coloring and paper peeling caused by seepage. Acid-Free Material for
Long-Term Preservation: The double-sided acid-free foam board, made with acid-free polystyrene foam and outer paper, helps neutralize airborne acids and keep artwork and photos from yellowing or fading. It is suitable for archival storage and long-term displays. Lightweight Yet Rigid and Easy to
Cut: The lightweight foam core board is easy to carry for school and on-site use, while its rigid construction stays flat. It can be smoothly cut with a utility knife for custom sizes and shapes without jagged edges.
Versatile for Multi-Scene Use: The 24"x36" standard size suits school projects, office presentations, home crafts, cosplay props, and exhibition displays. The 4-pack of white poster boards provides enough quantity for extended projects