Have your bases covered for that new kitchen or for holiday cooking with this 3-piece set by USA Pans. Set includes the Large Cookie Sheet, Half Sheet, and Quarter Sheet. Each pan is constructed of aluminized steel, the material of choice for commercial bakeries. The metal thickness has been selected to allow for even heat distribution and maximum service life. Flat sheets allow heat to completely wrap around baked goods. Corrugated design maximizes the pans" strength and prevents warping, denting and other effects of everyday use. Plus, it also minimizes surface contact which translates into evenly baked products that are easily released. No need for messy and unhealthy oil and grease. Pans are coated with Americoat. Americoat is a proprietary silicone coating. It provides a clear, non-stick, non-toxic baking surface, specially formulated for superior baking. It"s FDA approved; it does not contain PTFE"s or PFOA"s. It is not recommended to exceed baking temperature of 450 degrees F. Easy care. To clean, simply wipe clean after use; soap and water are okay to use. It is not recommended that pans be washed in dishwasher because harsh chemicals can cause the non-stick material to breakdown in time. Dry pans completely, after cleaning. USA Pans 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 Pittsburgh, Pennsylvania, USA. Large Cookie Sheet measures 18 by 14-inch; Half Sheet 13 by 18-inch; Quarter sheet 13 by 9-inch.