General description Parts for RoboVac 11S Robot include high-quality materials that are well-made and highly compatible with the equipment. These clean accessories help maintain your home robot's performance. Technical specifications Material: Plastic Package Contents: 2 x main brush 10 x side brush 10 x filter 1 x prime filter 1 x cover plate 1 x cleaning brush Measurement allowed error: +/- 1-3 cm Usage Cleaning accessories should be replaced every 2-3 months based on usage frequency. The filter captures dust, dirt, and other impurities to keep the robot clean and functioning properly. The filter also prevents dust and dirt from entering the robot's motors, extending its lifespan. Other information Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the actual product.