Practical Gutter Guard Filter: 4 gutter guards in total. Simply place the gutter guard into the downspout hole and push it into place. Aluminum Mesh Downspout Filter: Made of non-corrosive and waterproof aluminum, these gutter guard strainers are durable, rust-proof, and weather-resistant. Say goodbye to clogged gutters and downspouts. Roof Leaf Screen Strainer: Our gutter strainers are a great gutter guard with leaf filter to prevent leaves, debris, roof moss, twigs, and other dirt from clogging downspouts or gutters. Expandable Leaf Filter: Flexible and easy to bend to fit the size of your gutter system. Fits most 2-4 inch downspouts. Before inserting the gutter guard, simply roll it up tighter and it will expand once installed. Be careful: No additional tools are needed, but wearing gloves is a must to avoid scratches from the sharp edge when working with these mesh strainers. Material: Aluminum Colors: Silver Dimensions: 15*7.5cm