Compatible withReplacement bags only apply to Roborock S7 MaxV Ultra / S7 Pro Ultra / Q7+ / Q7 Max+ / Q5+ vacuum station. Please confirm your device model before ordering. ManufactureNot all parts are genuine. From OEM factory, materials used, workmanship and quality are comparable to the originals. Premium Materials: The filter bags are made of a blown fiber filter layer in the state high quality melt and non-woven fabrics, which effectively filter out 99% of dust particles and allergens down to 2.5m. Large CapacityDust bag size 16cm/6, 3'13cm/5.1'15cm/5.9', The disposable dust bag with 3L, captures dust, dirt and pet hair for up to 8 weeks. Scope of delivery8 dust bags. Provides up to 12-16 months of protection for your vacuum cleaners. Usage time may vary depending on usage environment and frequency of use.