Perfect Compatibility - The accessory is perfectly compatible with Roborock S8 series, for Roborock S8 / S8 plus / S8 + / S8 Pro Ultra, which can perform as the original ones Roller - Double rubber main brushes improve vacuuming and ensure less hair strands, which helps to remove messes from carpets and floors more effectively, achieving a thorough and deep cleaning effect Mop Pads - The cleaning pads are made of high water absorption microfiber and with a larger surface area to easily clean stubborn stains Side Brush and Filter - Adopt HEPA filters, which can effectively filter 99.9% dust when the robot runs. Meanwhile, the side brush can clean the corners to make cleaning more thoroughly Package List- Everything you need for Roborock S8 Pro Ultra is in one set, including 1 pair * duoroller brush, 1 * self cleaning brush, 4 * dust bags, 4 * filter, 4 * mop pads, 4 * side brush, 2 * clean brush tool, 1 * screwdriver