The anti-blocking Line cap serves as a preventive measure to stop leaves, twigs, debris, and other debris from clogging the gutter downspout, ensuring uninterrupted water flow. Although occasional cleaning may still be required to remove debris around the filter, it becomes much easier to clean the inside of the downspout.SpecificationMaterial: 304 Stainless SteelHeight: 41mm / 1.6 inchOuter Diameter: 83mm / 3.3 inchApplicable Diameter: 70-75mm / 2.8-3 InchBottom Size: 67 x 38mm / 2.6 x 1.5 inch (D*H)Product Include: 1 PcsAdvantageMade from 304 Stainless Steel material, and fine workmanship, is designed to withstand various weather conditions. It is resistant to weathering, corrosion, and oxidation, ensuring long-lasting durability.