Durable Aluminum Material: The gutter filter is made of aluminum alloy, rust-resistant, strong, durable, corrosion-resistant, and wear-resistant. It has a long service life and is reusable. The material structure is robust enough to withstand various weather conditions and prolonged sun exposure. Adjustable Size: These 3-inch gutter guards can be easily bent and adapted to fit most gutter systems, ensuring a secure fit and improved filtration efficiency. They accommodate downspouts ranging from 2 to 4 inches in diameter, including both rectangular and circular gutters. No More Clogging: The metal gutter guard effectively prevents leaves, stones, dirt, branches, and other debris from entering and blocking downspouts, helping to extend the life of the drainage system and reduce the need for frequent cleaning. Easy Installation: Adjust the gutter guard to a slightly smaller diameter than the downspout, insert it into the opening, and secure it in place. The design extends into the gutter for a firm hold and optimal debris prevention. Widely Used: Metal gutter guards help keep roof debris such as moss, twigs, and other organic matter out of the drainage system. As a reusable rainwater protection solution, they support long-term gutter performance and help prevent costly repairs caused by clogs.