Unique ridged fluted surface allows for even air circulation and heat distribution Commercial grade heavy gauge aluminized steel distributes heat quickly for consistent baking and even browning Thick rolled rims for maximum strength and versatile for any recipe Cake pan is finished with USA Pan’s proprietary silicone non-stick coating which allows for easy release and quick clean up; PTFE, PFOA and BPA free USA Pan is a Bundy family company which has proudly manufactured high quality bakeware and provided jobs in the USA for over 50 years