General description The For Roborock S7 MaxV Ultra Dust Bag Filter is designed to keep your robot vacuum running at peak performance. This set includes essential replacement parts that help maintain the cleanliness of your home while reducing the entry of dust, pollen, and other allergens into the air. Technical specifications Material: Plastic Package Contents: 1 x Rotating Brush 6 x Side Brushes 3 x Dust Bags 4 x Filters 5 x Mops 2 x Cleaning Tools Measurement allowed error: +/- 1-3 cm Usage For best results, replacement parts should be replaced every 2 to 3 months. Side brushes are easy to remove and replace as part of routine maintenance.