and Made of high-quality materials, more durable Side brush allows your vacuum cleaner to reach deeper into the carpet for a more thorough cleaning Filter filters fine dust to reduce dust, pollen and other allergens from penetrating into the air you breathe. Uniquely designed brushes with rubber treads to adapt to different floor surfaces that remove everything from small dust to large deposits. As part of normal maintenance, it can be easily removed and replaced It is best to replace spare parts every 2 to 3 months to keep the machine running at its best performance for IRobot Roomba i7 i7+ i8 i3 i6+/Plus E5 E6 E7 J7 J7+ J6+ Colour:As Shown Material:Plastic Position:Left+Right Package Contents: 2 x Drive Wheel Only the above package content, other products are not included. Note: Light reflection 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. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.