Applicable: Compatible with for N9 N9+ Robotic Vacuum Cleaner Easy to Install: Snap accessory kit into place for quick and effortless routine replacement. Abundant accessories to meet your cleaning needs. To keep your robot running at performance, the parts are recommended to be replaced every 2-3 months. Colour: as shown Material: Plastic Size: 17.5cm Package Contents: 1 x dust box 1 x cleaning brush Only the above package content, other products are not included. Note: Light 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.