Heavy-Duty Commercial Grade Aluminum Rust and Corrosion Resistant Double-Layer Nonstick Coating Reinforced Steel Frame for Easy Grip Compatible with Tin Foil Dishwasher Safe What's in the Box 3-Piece Non Stick Aluminized Steel Baking Sheets 13 x 9 Sheet 15.5 x 10.1 Sheet 17 x 12 Sheet Documentation