Our X-Slab is for protecting and preserving comic books (Golden-Modern Age sizes) and art prints (up to 7"x10.5"). Made from acid-free Tru Vue acrylic with optional 99% UV-protection back and front. A three-layer, recessed acrylic design provides up to 1/4" of depth with the expansion pack for thicker comic books. EZL stand allows for easy table-top display. For those who buy the book, not the grade ; ) Don't forget: earn 1 reward point for every $1 spent for free shipping, discounts, exclusives & more!