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

1.6 mm Thick Sturdy Core & Edge Protection (with
Plastic Corners): The 5mm high-density foam core board provides strong support for paintings, presentations, and crafts, with no bending or warping. Each package contains plastic corner guards and a shock-absorbing design, preventing shipping edge damage and solving the issue of a broken board on arrival.
Double-Sided Smooth & Seep-Proof Surface: The black foam board features a burr-free, double-sided smooth surface that prevents paint, marker, or glue from soaking through. It works perfectly with watercolors, acrylics, and adhesives, eliminating the hassle of uneven coloring or paper peeling caused by seepage. Acid-Free Material for
Long-Term Preservation: The double-sided acid-free foam board (acid-free polystyrene foam plus outer paper) neutralizes airborne acids, keeping artwork and photos from yellowing or fading. Ideal for archival storage and long-term displays. Lightweight Yet Rigid & Easy Precision Cutting: The lightweight foam core board is easy to carry for school or on-site use, while the rigid construction stays flat. It cuts smoothly with a utility knife with no jagged edges, allowing custom sizes and shapes, and solving heavy board transport and customization issues. Versatile for Multi-Scene Use (4-Pack
Value): The 24"x36" standard size suits diverse needs, including school projects, office presentations, home crafts, cosplay props, and exhibition displays. The 4-pack white poster board provides enough quantity for extended projects, avoiding frequent reorders and saving time