The Yhenlovtt Adjustable Stainless Steel Chimney Hole Cover is designed to fit a wide range of stove pipes and fireplace openings, ensuring a tight and secure fit. This product has a flat cap design with a tight-seal mounting wreath, making it easy to install and ensuring long-lasting performance. The adjustable feature allows you to select the perfect size for your chimney opening, from 50 to 200 mm in diameter. The high-quality stainless steel construction ensures durability, longevity, and resistance to corrosion. Additionally, the chimney cover is resistant to heat and can withstand temperatures up to 1000 degrees Fahrenheit. With its ergonomic design and easy-to-clean surface, this chimney cover is a great addition to any cooking or heating appliance, providing a safe and stylish solution for safely ventilating your home.