Description: 【Practical Home】: Our gutter guards prevents leaves, debris, roof , twigs, and other dirt from clogging downspout pipes or rain gutters, and blocks from climbing up. 【Durable Material】: These gutter strainers are made of waterproof aluminum alloy, ensuring durability, waterproofness, and weather resistance for long term use. 【Protect from Burrowing】: Not only do our leaf guards give leaf filter, they’re also a great downspout protector against , preventing them from burrowing in your gutter spout. 【Easy to Use】: No tools required, simply place it into the downspout hole and push it into the right place. 【Note】: Please wear gloves when working with these strainer mesh to prevent scratches from sharp edges. Specification: Material: Aluminum Alloy Size Chart: S Nomal Size: 8cmx8cmx15cm/3.15inchx3.15inchx5.91inch Expanding Size: 25cm/9.84inch L Nomal Size: 12cmx12cmx17cm/4.72inchx4.72inchx6.69inch Expanding Size: 36.5cm/14.37inch Round Nomal Size: 10cmx10cmx17cm/3.94inchx3.94inchx6.69inch Expanding Size: 30cm/11.81inch Package Includes: 1 Aluminum Downspout Filter(4 Pack) Note: Please allow slightly errors due to manual measurement and different monitors.