Elcoho 4 Pack White Foam Board, 20 x 30 Inch Acid-Free Foam Core Board, 5mm Thick Double Sided White Poster Boards for Presentation Art Display Office School Projects Crafting Sign Making

["Value pack: you will receive 4 pieces of white foam boards covered with double-sided white cardboard and 4 thickened white plastic corner protectors- ample supplies for various creative projects","Quality material: each white poster board features double-sided white cardboard on the outside and a foam core on the inside, adding extra strength and resilience; the durable, non-toxic construction offers a smooth surface for creative projects and suits a variety of DIY uses; greater weight gives each board a noticeable quality feel in hand","Appropriate size: each acid-free core board measures 20 x 30 inches with a thickness of 5 mm, offering ample space for crafting, displaying art, or presenting projects with a professional touch; due to the foam's flexibility and the cutting process, a deviation of ±0.35-0.55 inch may occur; the smooth surface works well with printing, glue, paint, or markers","Versatile use: the foam boards suit graduation DIY projects, handmade crafts, presentations, school projects, and a wide range of creative applications; also great for mounting artwork, photographs, and making signage; the smooth surface helps achieve professional, eye-catching results","Unique design: both sides feature a clean white surface, suitable for printing and writing; foam core boards can be effortlessly cut to any size or shape, giving you flexibility for custom projects and delivering clean, crisp edges; ideal for use at home, in the office, college, classroom, or kindergarten"]