Compatible Model: This replacement dust bag is ONLY compatible with Roborock Q7 Max, Roborock Q7 Max+, Roborock Q5+, Roborock S7 MaxV Ultra, Roborock S7 Pro Ultra Robot Vacuum Cleaner (Please confirm your robot model before purchase) Package Includes: 6 Pieces Vacuum Bags for Roborock Q7 Max, Roborock Q7 Max Plus, Roborock Q5 Plus, Roborock S7 MaxV Ultra, Roborock S7 Pro Ultra Robot Vacuum Cleaner High-quality Material: The dust bag is made of high-quality non-woven fabric and cardboard, which can quickly and efficiently empty the storage tank, without releasing harmful dust into the environment Replacement Frequency: Snap it on for quick and effortless replacement, no tools required. Keep your robot at peak performance by changing the consumable replacement kit every 2 to 3 months depending on frequency of use