Practical Home: Our gutter guards prevent leaves, debris, twigs, and other dirt from clogging downspout pipes or rain gutters, and block pests from climbing up. Sturdy Material: These gutter strainers are made of waterproof aluminum alloy, ensuring durability, waterproof performance, and weather resistance for long-term use. Protect from Burrowing: Not only do our leaf guards provide leaf filtration, they also serve as a downspout protector against pests, helping prevent them from entering the gutter system. Easy to Use: No tools required. Simply place the strainer into the downspout opening and push into position. Note: Please wear gloves when handling the strainer mesh to avoid scratches from sharp edges. Specification: Material: Stainless Steel Size: Fits 40mm to 50mm downspouts Package Includes: 1 x Downspout Filter Note: Please allow slight variations due to manual measurement and differences in monitor displays.