Made of high-quality 304 stainless steel, high-quality, thick, not easy to deform, and rust-proof. Built-in insect net, fine net to prevent pests from entering. The dome cover design is weatherproof and prevents unwanted leaks and drafts. Ideal for exhaust ducts such as tumble dryer exhausts, hoses, household vents, extractors, air conditioners, kitchen fans, gas, electric clothes dryers, range hoods and various industrial applications. Included: 1 x Stainless Steel Vent Round Easy to install and easy to use. Wear gloves when installing!