The Vevor chimney cap is designed to help protect your flue from rain, debris, birds, and other outside elements. Its 304 stainless steel construction offers strong resistance to rust and harsh weather for long-term outdoor use. The oversized round top provides broader coverage to help keep moisture out of the chimney. A reinforced mesh and expansion screw design help improve stability in windy conditions. It is suitable for multiple flue applications and installs with included hardware.