Clean brushes keep your home robot operating at .Side brushes are easy to remove and replace as part of routine maintenance.Filters maintain cleaning performance while reducing infiltration of dust, pollen and other allergens into the air you .For results, filters should be replaced 2 - 3 months.Compatible Models: for AV2501S RV2502AE AV2501AE RV2520AOUS AV2510AOUS RV2610WA AV2610WA AI Robot Vacuumcolor:Black+whiteMaterial:plasticPackage Contents:1 x Main Brush6 x Side Brushes2 x Orange Filters2 x Black Filters1 x -Filter2 x Foam FilterOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.