From USA Pan, the 6-Piece Bakeware set features:  Unique fluted design that facilitates air circulation and maximizes pan strength to help resist warping Made with the same standard high-performance features used for bakeware used in commercial bakeries Coated with AMERICOAT® coating, made without PTFE, PFOA and BPA Nonstick coating for easy release and quick clean-up. Limited Lifetime Warranty for the life of your use Aluminized Steel Each Measures: Large Cookie Sheet approx. 17 x 12.25" Half Sheet Pan approx. 17.25 x 12.25 x 1" 12-Cup Muffin Pan approx. 2.75 x 2.0625 x 1.375" in each cup 1 pound Loaf Pan approx. 8.5 x 4.5 x 2.75" 8-Inch Square Cake Pan approx. 8 x 8 x 2.25" Rectangular Cake Pan approx. 13 x 9 x 2.25" Made in USA.