1. These replacement kits are designed to be compatible with Qrevo Master / Qrevo Slim robot vacuum cleaner spare parts. Easy to install. [Please confirm your robot model before ordering. ] 2. Notes: Two main roller brushes can easily remove 99% of debris, reduce hair entanglement, and achieve excellent cleaning results on hardwood, tiles and carpets. [Please clean the roller brush every 2 weeks and replace it every 6-12 months to maintain suction power and performance. ] 3. Important tips: This replacement filter blocks and seals out 99.97% of dust and fine particles as small as 0.3 microns. The effective airtight seal minimizes air pressure loss and maintains powerful suction. [Please use the included cleaning brush to clean the filter, or wash it every 2 weeks and replace it every 6-12 months. ] 4. Important Tips: The mop pad of Qrevo Master / Qrevo Slim is made of microfiber, which is highly absorbent and can easily clean dust, kitchen oil and pet sealed floors. It can be washed in a washing machine and reused many times. [Please replace it every 1-3 months.] 5. Notes: The dust bag of the sweeping robot vacuum cleaner can meet long-term replacement needs. The dust bag is made of high-quality fabric, which can block 99.9% of particles and is not easy to leak. [Please replace the dust bag every 1-2 months.] Material: Plastic Color: As shown in the picture Only the above packaging contents are included, other products are not included. Note: Due to light reflection and display differences, the color of the product in the picture may be slightly different from the actual product. The measurement allowable error is +/- 1-3 cm. Package Contents: 1 pair of roller brushes 3 side brushes 2 HEPA filters 4 mop cloths 5 dust bags 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.