The pot mat will protect the kitchen counter, table or other surface from damage from the hot bottom of the pot, pan, teapot, baking pan... You can use it to put the pot down while cooking or when serving on the table. Depending on the size of the container, you can use one alone or 2 pieces together under the baking pan or baking sheet. Material: silicone. Dimensions: dia. 17.8 cm, h. 0.7 cm. It can withstand temperatures from -10 °C to +220 °C. It is dishwasher safe.