Each piece of Pro Series Bakeware is made from premium 3003 alloy and is anodized. This anodizing process hardens and seals the surface producing an attractive, smooth and safe finish. » Commercial quality bakeware » Consistent even thickness » Guaranteed for 25 years - Will Not Rust, Blister Chip or Warp » Handwash only Brand: Mondo Pro Series Size: 7" X 1.25" DEEP