Made from microfiber, the Roborock Mop Cloth removes ultra-fine dust that would otherwise be left behind by regular vacuuming. Mount the cloth onto the water tank easily and quickly through the specially designed attachment slot. The highly absorbent cloth soaks up water and distributes it evenly across its surface, giving you an even clean that lasts for up to 60 minutes. High-quality Velcro locks the mop tight and flat and is tested to maintain as much as 80% of its effectiveness after 500 uses. The cleaning area matches the width of the main brush, giving a perfectly matched clean that leaves all surfaces vacuumed and mopped.