Product description    iClebo For Arte YCR-M 05 10 20 30 50 Accessory Cleaner Package Blade+Main Brush Robotic Vacuum Cleaner Side Accessory Package. If Blade Get Torn or Wear Down, It Must Be Replaced. Suggestive Replacement Cycle For Main Brush: 1 Year (Disposable, Non-Reusable), For Blade: 1 Year. Product Composition: 1 Blade + 1 Main Brush. Compatible : YCR-M05-10 YCR-M05-20 YCR-M05-30 YCR-M05-50.