This set of 4 chimney pipe seals is designed to provide a good seal and prevent unwanted air entry. The stove pipe seals can be cut to the correct size to meet your needs. They are made of ceramic fiber paper, which provides good thermal insulation and high heat resistance. Simply place the chimney pad under the chimney diverter for easy application. This set includes 4 chimney seals that can meet your replacement needs. Make sure to carefully check if the size fits your pipe before purchasing. Regularly clean the stove pipe to minimize the risk of soot fires. Please note that there may be some particles on the surface, so it is recommended to wash your hands after installation. Due to lighting and display differences, there may be slight color differences. The package includes 4 oven pipe seals.