Designed for keeping ribs on the bottom of the roasting pan and steaming them in their own juice or other flavored liquid. The ribs cook completely and stay moist in less time. The rib roaster can be used as a standalone item or as a liner for the Cast Rib roaster to keep it clean during use. 5.5 inches x 16 inches x 4 inches of usable space. A pack of 2.