General description New, high-quality materials are used in the For D9 Plus Roller Side Brush Hepa Filter Mop Pad Dust Bag, which is well-made and highly compatible with the original equipment. Clean accessories enable your home robot to maintain optimal performance while reducing dust, pollen, and other allergens from seeping into the air you breathe. The cleaning accessories are easy to remove and replace as part of routine maintenance. Technical specifications Material: Plastic Package Contents: 2 x main brush 10 x side brush 8 x filter 10 x mop cloth 10 x dust bag Measurement allowed error: +/- 1-3 cm Usage To achieve the best cleaning and filtration effect, it is recommended to replace the cleaning accessories every 2-3 months, depending on the frequency of use. The filter functions to filter dust, dirt, and other impurities inhaled by the sweeping robot, keeping it clean and running normally while preventing dust and dirt from entering the robot's motors and other parts, thus