Versatile Crafting Essential: Includes 25 - 8.5"x11" chipboard sheets with 90pt thickness, perfect for card making, scrapbooking, or creating custom frames and albums. Ideal for Professional Bookbinding: These heavy-duty book binding boards provide a strong foundation for DIY journals, personalized albums, and other bookbinding projects. Premium 90pt Heavyweight Design: This chipboard 50pt thickness offers unparalleled stability and strength, making it ideal for intricate designs and long-lasting crafts. Customizable Black Finish: Features a black-coated surface on one side, allowing for easy decoration with paints, papers, or stamps to create personalized, professional-looking projects. Multi-Purpose Crafting Tool: Whether you're cutting out shapes, designing book covers, or exploring chipboard for book binding, these binder boards are perfect for all your creative needs.