4 Pack Foam Board 30"x40", 0.23" Thick Black Poster Board, Acid-Free Double Sided Foam Core Board for Presentation Art, Display, Office, School Projects, Crafting, Sign Making

[Large Size for Multi-Scene Needs] The generous 30" x 40" x 0.23" dimensions meet various basic usage needs, including display, artwork mounting, signage creation, and DIY crafts. It is flexibly adaptable to home, school, office, and commercial scenarios. [Double-Sided Acid-Free Design] Featuring a blank, smooth surface on both sides, this foam board is made with acid-free material. It allows writing, painting, and pasting, and is compatible with various tools such as paints, markers, and adhesives, helping you easily create exquisite, textured finished products.

[Easy to Cut & DIY] Lightweight and easy to handle, the board can be directly cut, folded, and shaped with cutting tools. You can also handcraft customized works such as models and art displays as you like. [Versatile for Any Project] Widely applicable for signage creation, yard sales, real estate notices, art creation, DIY crafts, event decoration, and office displays, it caters to both personal creative needs and professional business demands. [Durable & Protective Package] This 6MM foam core board features a reinforced thick construction for exceptional sturdiness.

It is lightweight yet rigid, delivering long-lasting performance for both indoor and outdoor use and effortless transportation. Each package is equipped with plastic corner protectors and a shock-absorbing design to prevent edge damage during shipping, helping reduce the risk of board breakage upon arrival