Description: Function:Chimney Flue Guard allows burning materials to burn evenly, saving fuel, and protects the chimney from external influences such as rain or snow.Stainless Steel:Roof chimney cover is made of 304 stainless steel, durable and rust proof, easy to clean. It's resistant to rust and deformation due to its high hardness.Easy to Install:Cone Top Chimney Cover can be installed and adjusted by extending the screws, and the installation position can be selected according to the size of the chimney.Enhanced Design: The rain cap features a widened and reinforced brim for added strength and stability, making it more strong and reliable.Application:Stainless Steel Chimney Cap suitable for roof vents, furnace covers, roof flashing caps, metal round chimney ends. Size Chart: Diameter 8cm-9cm/3.15inch-3.54inch Hat 20cm/7.87inch Package Includes: 1 Chimney Rain Caps(The goods are delivered with screws, customers need to install them by themselves after receiving the goods) Note: Please allow slightly errors due to manual measurement and different monitors.