Size: 20 * 16 * 6 cm Product model: Package contents: 2 * Main brush, 5 * Filter, 8 * Side brush, 1 * Screwdriver, 1 * Small brush, 1 * Universal wheel 1. Compatibility: This accessory kit is compatible with series, these replacement parts are suitable for your vacuum cleaner. 2. Package contents: 2 * Main brush, 5 * Filter, 8 * Side brush, 1 * Screwdriver, 1 * Small brush, 1 * Universal wheel. 3. High performance: Two high-quality rubber brushes are perfectly matched, one for removing dirt and the other for cleaning grime. The side brushes reach deeper into corners and edges to remove more dirt and debris. The replacement filters can capture dust, pet hair, and other micron-sized particles. 4. Easy to replace: To ensure your sweeping robot is working optimally, it is recommended to replace the multi-surface brush roll every 3 months, the filter every 1 month, and the side brush every 6 months. This depends on your frequency of use.