To prolong the service life of accessories, please clean them regularly.A clean brush allows your domestic robot to run at its best performance.As part of routine maintenance, the side brush is easy to remove and replace.The filter maintains clean performance while reducing dustFor best results, the filter should be replaced every 2-3 months.Main Brush: Replaces your existing vacuum cleaner's worn out brush.Side Brush: Side brush can go deep into the corners and edges to remove more dirt, dust and debris, specially designed for anti-twining during cleaning, easily collect hair and dirts but seldom twined by hairs.Model: Suitable for Roborock S7 T7S T7PLUSColor: as shownMaterial: plastic+clothPackage Contents:1 x roller brush4 x pentagonal side brushes4 x filters2 x dust bagsOnly 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.