Gutter Guard: Once the leaf screen is clogged, it is difficult to remove and mosquitoes can grow in. With our gutter guard, you can now ensure that gutters and rain pipe guards are protected from bay leaves, roof moss, branches, and dirt. You don't need to spend a lot of time and energy cleaning clogged downpipes. Expandable Structure: The aluminum gutter guard is suitable for most traditional downpipe sizes and can be adapted to your gutter system. This means a perfect fit and improved filtration efficiency. The expandable gutter guard with 3-inch blade guard is flexible for most downspouts of different sizes from 2 to 4 inches (rectangular and circular gutter) [High-quality aluminum material]: The metal gutter guard is made of high-quality aluminum, lightweight, not easy to rust. The bright silver appearance is very beautiful. The material and structure are strong enough to withstand all kinds of weather and sunlight, so it can be used for a long time. Easy to install: It can be installed without any tools. Simply adjust the diameter of the gutter guard to be slightly smaller than the diameter of the gutter tube, insert it, and secure it. Can be expanded into the gutter to ensure a tight fit and ensure there is no clogging. (Please wear gloves before use to avoid damaging the tip of your hands) 4 Pieces Practical and Economical: The kit contains 4 aluminum strainers that can be cut according to the size of your gutter. As a practical rainwater pipe protection device, it is reusable, so you don't have to spend more time and money to clean the entire drain and downpipe.