The diffuser is your cooking heat controller, when using a wood-fired stove you have no high medium or low so place you heat diffuser between the fire and what you are using to cook in. The diffuser is one of the must-have accessories and will make your cooking life easy. It is ideal when cooking fish or chicken, or when a gentle simmer is required. Specifications Dimensions: H:1.0 x W:21.5 x D:36.0 cm Colour: Silver Guarantee: 2 Years Material: Steel Model Number: OZP002-01