Compatible models: the dust bags for S7 MaxV Ultra / S7 Pro Ultra / + / Max+ / Q5+ vacuum cleaner, perfect replacement for bags. Premium materials: the S7 MaxV Ultra dust bags are made of a high-strength 3-layer filter layer of super-fine melt-blown fibres and 2-layer non-woven fabrics. The + dust bag has a strong sealing property and an improved sealing inlet hole and a well sealed edge. Safe environment: the Max+ dust bag has strong sealing properties and easy disposal without . It dramatically traps dust, dirt and rubbish and prevents them from recirculating in the air in your home. Easy to install: the replacement and installation method is the same as the accessories. It can be perfectly compatible with for vacuum cleaner. Snap in for quick, effortless replacement. There is no need to worry about the installation. package: Regular replacement of vacuum cleaner bags improve the overall performance of your vacuum cleaner. Material: plastic colour: As shown Package Contents: 1 pair