Using high-quality materials, durable. It can filter all dust particles and help you and your family breathe. The air is free of allergens, dust, dirt, and pet dander particles. To protect the cleaning performance of the vacuum cleaner and reduce dust, pollen, and other allergens in the air Compatible with models: for WD3.200 WD3.300 MV3 vacuum cleaners. Depending on your household, it is recommended to replace your parts every 3 to 6 months. Regularly replacing your parts keeps your machine running at peak efficiency. Type: Dust Bag Size: 115 x 120mm (Approx.) Hole Diameter: 80mm (Approx.) Made of environmental protection material Color: Yellow Material: Plastic Package Contents: 2 Filters Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.