Make a jelly roll or sheet cake in the Deep Flexi. One of my favorite Demarle at Home pieces! I call this a #Silpat with sides. It can do everything the silpat can do and more- juicy chicken, fish, granola, caramel, jelly rolls and cookies, of course. No greasing, no sticking, no kidding. Safe for oven, microwave and freezer. Kosher, NSF, BPA free. And it has a lifetime manufacturer's guarantee.