These HUTT RD1 replacement cleaning cloths are designed specifically for window cleaning robots, ensuring your glass surfaces stay clear and smudge-free. Made from grey microfiber, each cloth has a diameter of 142 mm to provide full coverage during the automated cleaning process. This set includes 10 pieces, providing five complete pairs for long-term use. They are fully compatible with several models, including the HUTT DDC55, C65, DDC56, and C7, making them a practical choice for maintaining the efficiency of your device without needing frequent new purchases.