This maintenance kit may have almost everything you need, including spinning side brush, vac filter, set of brush. Help you get your job into the groove. Features: Clean brushes keep your home robot operating at peak performance.The innovative brush reaches deep into corners and edges to remove more dirt, dust and debris. Easy to remove and replace as part of routine maintenance. Excellent quality accessories for cleaner. Easy using and easy installing. For best results, filters should be replaced every 2-3 months. Specifications: Item type: Vacuum Cleaner Parts Material: Bristle+plastic Package weight: 300g Package size: 0.32 * 0.225 * 0.05m / 12.5 * 8.85 * 1.96inPackage list: 5 * Side brushes 4 * Hypa 1 * Set of rolling brush 1 * anti-collision strip