[Applicable Machines]: Replacement Dust Bag compatible with for Roborock S8 Pro Ultra, S8+, S7 MaxV Ultra, S7 Max Ultra, Q5+, Q7+, Q7 Max+ Clean Base Automatic Dirt Disposal models. Ensure to check the model of your vacuum cleaner before making a purchase. [Effective cleaning]: The vacuum dust bags are advanced with a push-pull handle design, simply remove the full dust bag, without needing to touch dust when changing. Easy disposal without the cloud of dust. [Maximum Capacity]: for Rrochio Q7 max dust bag with 2.7L capacity, each dust bag holds up to 60 days of debris (depending on how many times the sweeper sweeps and how much dust is in the home), the dust bag replacement kit is designed to meet the long term replacement needs of 10-12 months. Pro tip: Replace the bag when it is 2/3 full for optimal performance. [Efficient Performance]: vacuum dust bag which can effectively filter 99.9% of fine dust and particles, reducing the amount of dust in the space, especially suitable for people who don't like to come into contact with dust. [Sealing Rubber]: Upgraded sealing technology and thick rubber ring to decrease 33% leakage risk. Pull up the flap when replacing the dust bag, easy to seal off the dust and prevent the dust bag from leaking during movement and causing secondary air pollution.<br><br>[Easy To Use]: Place Q7 max dust bag into the canister, sliding the plastic card into the guide rails. Please ensure the vacuum dust bags is fully secured into your Clean Base. Colour:As Shown Material:cloth<br><br>Package Contents: 14 * Dust Bag<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.