1. and high quality. 2. Made of high-quality materials, durable and practical. 3. The ventilation layer of the dust bag filters out different levels of dust and debris to provide maximum capacity and durability 4. The filter can maintain the clean performance of the vacuum cleaner, while reducing the penetration of dust, pollen and other into the air you breathe. 5. Simple installation, it can be removed and replaced. It is recommended to replace it every 2-3 months or according to your usage to keep the machine at its best performance. Type: Vacuum Cleaner Parts Vacuum Part Type: Bags Compatible model: For MV4 For MV4 PREMIUM For MV5 For MV6 For WD4000 to WD5999 WD 4 WD 4 Premium WD 5 WD 5 P WD 5 P Premium WD 5 Premium WD 6 P Premium Material: Nonwoven+Plastic colour: As shown Package Contents: 6 x dust bag 2 x high efficiency filter 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.