The Xiaomi Mi Robot Vacuum-Mop Essential Brush is a replacement main roller designed to keep your robotic cleaner efficient at lifting dirt and debris from various floor surfaces. Weighing only 25 g, this component combines plastic and metal for structural integrity with nylon and TPE bristles that effectively gather dust without damaging your flooring. Measuring 205 x 50 x 50 mm, the brush features a distinct red and black finish that fits precisely into the vacuum's internal housing. It is an essential accessory for anyone looking to maintain the cleaning performance of their device by replacing worn-out bristles.