The side brush allows your vacuum cleaner to reach deeper into the carpet for a more thorough clean As part of normal maintenance, it can be easily removed and replaced. It is best to replace the spare parts every 2 to 3 months to keep the machine running at its best performance Please note: there is some color difference or difference in kind, please don't worry, ! Material: plastic Color: Photo color Package Contents: 4 x Side Brushes 4 x Mops 4 x Strainers Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.