ACID FREE PAPER:Our paper is solid, strong, and close to neutral. Protect materials in contact with paper from acid corrosion. Permanent paper can be stored for at least a very long time without obvious deterioration, making it suitable for collecting books and precious documents. LARGE SIZE: Each poster board sheet measures 11.7 x 16.5 inches providing plenty of space for visual presentations, school assignments, crafts, sales signs and more SMOOTH FINISH: The poster paper has a smooth matte surface that is ideal for drawing, coloring, gluing or any other poster/craft application and will not tear or ripple easily HIGH QUANTITY: This value pack includes 30 sheets of poster board, with 5 sheets of each color, to give artists, students and crafters materials for many projects and presentations MIX AND MATCH: With the variety of bright, eye-catching neon hues included, users can design creative posters, displays and more using a mix of colors for maximum visual impact These vibrant poster boards are perfect for creative projects. Available in a bright rainbow of neon shades, the true colors pop and will draw attention from across the room. Durable and thickness, each 11.7 x 16.5 inch poster board is acid-free and tear-resistant for presentations, school assignments, crafts, sales displays or any project where you want your message or artwork to really stand out. The smooth finish provides a nice surface for drawing, painting or attaching photos and materials. Best of all, this value pack includes 30 boards in six neon shades, giving you plenty of options to coordinate with your theme or topic.