The Cambro 12 inch x 18 inch Yellow Camwear®Food Box Cover (1218CCW464) is made of virtually unbreakable Camwear® polycarbonate. With Cambro food box covers, you get convenient food storage that won't need to be replaced due to any cracking or denting. The Cambro cover features a top molded-in rail that allows for secure stacking and a snap-tight lid that won't come apart from knocking about. But that's not all—the Cambro food box cover also withstands temperatures from -40 degrees F to 210 deg...