The Pacon® Fade-Away™ Foam Presentation Board is 3/16" thick and features a faint 1/2" grid that makes it easy to line up words, charts or graphs. The grid pattern takes the guess work and measuring out of creating a display, making it easy to create the perfect presentation. It's a great solution for school, home, art and office applications. The Pacon® Fade-Away™ Foam Presentation board is 28"W x 22"H, and folds to 14"W x 22"H, so it's easy to carry and take with you wherever you need to go. Acid free.