This high grade carbon steel roaster features 1mm thick steel with rolled edges for strength and durability. The non-stick surface is dishwasher safe and have a stellar lifetime guarantee with a 5 year non-stick guarantee. The tray also comes complete with a James Martin recipe to start you off using your roaster. Available in 3 sizes: 26cm x 22cm x 7cm, 29cm x 25cm x 5cm and 33cm x 28cm x 7cm.