Double pan. Insert features drain holes for draining liquids. The outside pan can be used separately. Made of steel with durable nonstick finish. Inner pan: 9 In. x 5 In. x 2.5 In. Outer pan: 11 In. x 5.75 In. x 2.5 In. Material: Steel Width: 5 In. Length: 9 In. Depth: 2-1/2 In. Non-Stick: Yes