1. , high-quality materials, well-made, durable, and highly matched to the compatible original-equipment. 2. Clean accessories allow your home robot to maintain optimal per compatiblemance. Accessory contents are easy to remove and replace as part of routine maintenance. All while reducing dust, pollen and other allergens from seeping into the air you breathe. 3. In order to achieve the best cleaning and filtration effect, cleaning accessories should be replaced every 2-3 months according to the frequency of use. 4. The dust bag of the sweeping robot is used to collect dust and debris inhaled by the robot when sweeping the floor. Fibrous materials filter tiny particles from the air, reducing dust and pollutants in indoor air. The dust bag can also prevent dust and debris from escaping from the robot, keeping the indoor environment clean, and can filter out smaller particles such as pollen, thereby providing users with a healthier indoor environment. Quantity:20PCS/10PCS/15PCS/5PCS : Material:non-woven fabric Package Contents: 20 * Non-woven dust bag / 10 * Non-woven dust bag / 15 * Non-woven dust bag / 5 * Non-woven dust bag 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.