This gourmet bakeware features the Doughmakers® patented pebble surface that is pressed into each product. This surface offers unparalleled baking performance, creating baked foods that brown evenly and consistently and release quickly. Its mostly recycled, all-aluminum construction is lighter and more durable than steel, and allows for maximum heat transfer and shorter cooling times. The bakeware does not need non-stick aerosol sprays or coatings, so clean up is easy, and it will not rust. Hand wash. Limited lifetime warranty.