Inspire bakeware is the superior choice for bakers everywhere. This Inspire oven tray has been manufactured out of heavy gauge carbon steel, an extremely robust material that allows heat to be distributed more evenly for perfect cooking results every time. This Inspire oven tray features our innovative Cushion Smart design ensuring better browning and easier release. All Inspire bakeware includes a quality guarantee of 25 years. What is Cushion Smart? CushionSmart provides a triple benefit to baking roasting. The cushioned surface enables air to flow around food to create better browning and aids the non-stick performance as low lying areas are protected from utensil abrasion enabling superior food release for longer. Features: Made from heavy gauge carbon steel for exceptional heat conduction Superior non-stick inside and out for easy food release Freezer and refrigerator safe Dishwasher safe and oven safe up to 240 C/475 F/Gas Mark 9