Model Info:008Item Weight:8.4 ouncesProduct Dimensions:7.8 x 7.8 x 3.9 inchesPart Number:APRRS7008Special Features:AutomaticCompatible Device:Vacuum CleanerMaterial Type:Non-woven, fiberIncluded Components:Bags x 8Batteries Required?:NoWARM TIPSThese replacement vacuum bags perfectly fits for Roborock S8+ / S8 Pro Ultra / S7 MaxV Ultra / S7 Pro Ultra / Q7+ / Q7 Max+ / Q5+ Vacuum Cleaner. Please check your vacuum cleaner models.Includes 8 packs of automatic dirt disposal bags. More affordable and meets your long-term replacement needs.Compared with the traditional cleaning method, the dust bag is made of 2-layer superfine melt-blown fiber filt-er layer and 2-layer non-woven fabrics, has strong sealing property, easy disposal without the cloud of dust.High-efficiency filter keeps the vacuum cleaner clean while reducing the penetration of Dust particles. This bag can lock 99% of dirt. Each dirt bag holds 3L of dirt and debris so you dont have to think about vacuuming for weeks at a time.We will still stand behind our products and provide you with our best service. If you have any problems about our products and amazon customer team could not help you settle product problems, please feel free to contact us.