A 22.5 cm square dice is about 8 inches, because one inch equals 2.54 cm, so 20÷2.54≈8 inches.

Circular baking pans are also available in different sizes from 6 inches to 12 inches. In actual use, the baking tray does not need to be sewn tightly with the oven, but placed on the baking net, so as long as the size of the baking tray is smaller than that of the oven cavity and can be placed flat on the baking net, there will be no problem in use.