ANGECA Stove Top Cover and Protector for Glass, Ceramic Stove - Quilted Material 100% Cotton - Protects Electric Stove, Glass Cooktop or Washer Dryer Top 🌸Reusable - Clean-up Easy - Spot Cleaning and hand washing in cool water are preferable. However, if you decide to wash in the machine, please use a delicate wash - cold water (no dryer – air dry – cotton iron). The cotton could shrink about 1 inch; however, we are making our covers 1 inch larger. If it shrinks, iron it and your cover will cover the 28 ½ x 20 ½ cooktop no problems 🌸Multipurpose Electric Stove Cooktop Cover and Protector, Heat resistant table/counter mat, ironing mat How to use it? You must let your stovetop cool down completely before placing the protector on the top of the stove Stove Protector is made from heat resistant materials and you can leave the stove cover on the top of the stove while the oven is in use. The stove will get warm but no damage will occur REMOVE COVER BEFORE TURNING ON THE STOVE! CAUTION! DO NOT USE STOVE COVER WHEN YOUR STOVE TOP IS STILL ON AND HOT