Design Specialties created the anodized aluminum fireplace doors. Anodized aluminum is the highest engineered metal that you can find on fireplace doors. It does not rust and it withstands higher temperatures than any other metal. It also provides shapes and finishes that are not possible with any other material. We have 21 different finishes for this Series. The doors have outer frames and "stiles", the pieces that hold the glass into place. You can order doors with different finishes for the outer frame and the stiles, if you wish. You can get the doors as foldbacks, tracked or twin (cabinet). Glass is available in clear, bronze, gray, solar cool or beveled. You can get mesh curtains or gate mesh doors as options. Designers love this line, and so will you!