The Xiaomi Mi Robot Vacuum Brush Cover is a replacement cover for the main brush on Roborock vacuums. It features a sturdy polycarbonate body with stainless steel components to form an anti-wrap design, helping prevent hair and cable tangling while protecting floors from scratches. The unit installs with one hand and includes a bearing cover to reduce hair wrap around the mechanism. Compatible with Roborock models including S5, E20, E25, and C10.