Rectangular Tray is a nice large baking and serving tray. Use as a Jelly Roll Pan, too! Measures 12.5"W X 16"L X 1.5"T. Made from high quality steel coated with enamel. Provides perfect conductivity and consistent heat for more uniform baking. Enamelware is not intended for microwave use. Black rims are currently being phased out by the manufacturer. We will continue to ship items with black rims until the inventory is depleted.