Casserole sizes: 20cm, 24cm, 28cm, 30cm, 32cm. They can be used on gas, electric and halogen hobs, and are also dishwasher safe. The attractive bold colours make these a very stylish and eye-catching set of cookware to have in your kitchen! Made from heavy-weight die-cast aluminium that ensures optimal heat distribution the casseroles are ideal for cooking a wide range of ingredients.