100% NON-STICK SURFACE: Premium Nonstick Carbon Steel Baking Mat. Reusable for over Easy to Clean.
The spaces between the big circles are just right. Not too close that the macaron shells end up sticking together when baked. Not too far that you get only a few macaron shells per sheet.
Heat resistance: Withstands temperatures from -40f to +446f (-40c to +230c). so you can take the mat out of the freezer, straight to the microwave or oven.Microwave, Oven, Refrigerator, Freezer and Dishwasher Safe