Durable Aluminum Material: The gutter filter is made of aluminum alloy, which is 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 sunlight exposure, making it suitable for long-term use. Adjustable Size: These 3-inch gutter guards can be easily bent and adapted to fit most gutter systems, ensuring a secure and customized fit. They accommodate downspouts with diameters ranging from 2 to 4 inches, including both rectangular and circular gutters. No More Clogging: The metal gutter guard effectively prevents leaves, twigs, dirt, and small debris from entering and blocking downspouts, helping to maintain proper water flow and reduce the need for frequent cleaning. Easy Installation: Simply adjust the guard to a slightly smaller diameter than the downspout, insert it securely, and ensure it extends into the gutter for stability and optimal performance. Widely Used: Metal gutter guards help keep roof debris—including moss, twigs, and other organic matter—out of rainwater systems. As a practical, reusable rainwater protection solution, they support long-term gutter performance and help prevent costly repairs caused by clogs.