Applicable: Compatible with for Ecovacs DEEBOT N9 N9+ Robotic Vacuum CleanerEasy to Install: Snap accessory kit into place for quick and effortless routine replacement. Abundant accessories to meet your cleaning needs.filter can remove 99.9% fine dust particles, protect the air in your living environment and ensure the service life of the vacuum cleaner.To keep your robot running at peak performance, the parts are recommended to be replaced every 2-3 months.Colour: as shownMaterial: PlasticSize: 17.5cmPackage Contents:1 x dust box4 x filters1 x cleaning brushOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.