Depending on how often you use your robot vacuum, replace the kit every two to three months to keep it operating at its best. Snap into position for simple and rapid routine replacement. High-strength materials that are simple to remove and clean are used to make brushes. Included in the accessory kit are: Rolling Brush, Brush Guard, Side Brush, Washable Filter, and four RoboVac X8 Pro Standalone (T2266T11) and RoboVac X8 Pro SES (T2276T11) are compatible.