Feature 1Prime Material: Premium stainless steel material, durable and reliable, can effectively resist the erosion of wind and rain. 2With Clamp Design: Easy to install and ensures a tight fit to the flue orifice, preventing the ingress of dust and rainwater. 3Venting Effect: Provides optimized venting performance, improves combustion efficiency, and reduces the risk of chimney ash buildup and backflow. 4Safety: Effectively prevents small animals and rainwater from entering the flue, protecting the integrity and function of the chimney. 5Suitable: Designed to release your air in your roof space in just a few minutes, unaffected by rain and moisture, this is especially suitable for infrequently used chimneys.Item Type: Chimney Rotating Ventilator Cap Weight: 1138g / 40.14oz Material: Stainless SteelApplicable Objects: Home and commercial use.