Heavy duty bakeware designed in cooperation with James Martin to maximise performance. High grade steel with rigid rolled edges to ensure strength, durability and safety. All surfaces feature double layer non stick for optimal baking results and easy cleaning. Sleeved with James Martin's special recipe on the reverse. Dishwasher Safe. Oven Safe Up to 210 degrees C. Stellar Lifetime Guarantee, 5 Year Non-Stick Warranty.