Features: Soft roller head with bristles can vacuum and wash at the same-time, also suck back large particles and liquid. Brush Roll can wisely-and thoroughly clean itself with Self-cleaning function, saving your time and energy after- cleanup. Easily detachable and washable, placed on the storage tray. As part of normal maintenance, it can be easily removed and replaced. To keep Robot Vacuum running at best performance, it is recommended to replace the filter every 2-3 months. Specifications: Material:Plastic Brush Size:Approx.22.3cm/8.77" Sponge: Approx.7.2x5.5x1.1cm/2.83x2.16x0.43" Type: Compatiable with HF10E-01 Package Includes: Package A:1xRoller Brushes; 4xFilter Package B: 2xRoller Brushes; 6xFilters note: Please allow 1-2cm errors due to manual measurement,Please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item.