Clean brushes keep your home robot at its best. As part of routine maintenance, accessories are easy to disassemble and replace. The filter keeps the robot clean and reduces the penetration of dust, pollen and other allergens into the air you breathe. In order to achieve the best cleaning and filtering effect, the filter should be replaced every 2-3 months according to the use frequency. Brand new, high-quality materials, well made, durable, and high matching with the original equipment. colour: as shown Material: plastic Package Contents: 1 x main brush 4 x side brush 2 x filter 2 x mop 2 x dust bag 1 x cover plate Only 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.