The USA Pan  Muffin Pan is constructed of aluminized steel, the material of choice for commercial bakeries, with metal thicknesses designed for even heat distribution and maximum service life. Each cup is 2.75-inches x 1.25 inch deep. The corrugated design and wired rims maximizes the pan's strength and prevents warping, denting and other effects of everyday use. The silicone Americoat Plus non-stick coating is environmentally friendly, FDA approved, and does not contain PTFE's or PFOA's. Oven safe to 450 degrees. Easy clean-up with just soap and water. USA Pan is the newest line of bakeware developed by American Pan, the world's largest manufacturer of commercial bakeware. Pans are made of 65% recycled steel. Made in the USA. Manufacturer's warranty.