Wide Application: The drainage ditch protection device can filter fallen leaves, weeds, dust, debris or other pollutants to protect the downspout and drainage ditch from being blocked. When used, the downpipe will not be blocked, nor will you take a lot of time and effort to plug the downpipe. The drain protection filter can collect rainwater more efficiently by improving water flow and filtering out certain pollutants; the leaf filter is suitable for most sizes of traditional downpipes, the height is 17cm/6.69in, the size is adjustable, and the diameter is 45-85mm/1.77-3.35in , each package is equipped with 4 metal drainage ditch guards, enough to meet your needs. Material: made of high quality stainless steel, not easy to rust, with shiny silver appearance, very beautiful. The material and structure are strong enough to withstand all kinds of weather conditions and sunlight, can be used for a long time. Essential for every gutter system: by preventing debris, branches, roof moss and dirt from clogging pipes, you can easily ensure that the gutter system remains in ideal condition for a longer period of time without costly maintenance. Dredge constantly. Usage: Installation and maintenance are simple, no tools are required. Adjust the diameter of the filter to be slightly smaller than that of the downspout, then insert it. To prevent the tip from hurting your hands, it is recommended to wear gloves.