1. It can prevent blades, small debris, roof moss and dirt from blocking the pipeline, and easily that the drainage system remains in perfect condition for a long time.2. Can be install without tools, easy to operate. You only ne to insert a filter in each nozzle to save time, effort and money.3. Made of high-quality corrosion-resistant 304 stainless steel, durable.4.stainless steel strainers (2 inch) Have 10 steel vertical barcolour: silverMaterial: stainless steelsize: 10.5x4x7.5cmPackage Contents: 4 * stainless steel strainersOnly the above package content, other are not includ.Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allow error is +/- 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.