Easy to clean Easy to install and replace Made of plastic, and high quality As part of normal maintenance, it can be easily removed and replaced. It is best to replace the spare parts every 1-3 months to keep the machine running at its best performance Compatible with: For Freo X Ultra / J4 Please note: The physical color difference or difference does not affect the use, please don't worry! Material: Plastic Color: As shown Package Contents: 2 x Roller Brushes 2 x Built-in Dust Bag Filters 8 x Filters 8 x Rag 8 x Side Brushes 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.