Compatible with Vacuum Model: Replacement For Dreame Z40 Station Vacuum Cleaner. Please confirm your device model before making a purchase. Efficient Performance: Good replacement for your vacuum cleaner. The replacement bag features a non-woven fabric and melt-blown cloth design that effectively captures and isolates dust. Effectively picking up all the fine dust and large debris, create a clean and healthy environment for you and your family. Usage Method: Simply take down your old part and put this new part in place. Bags automatically seal when removed, preventing any leakage and making replacement hassle-free and clean. Recommended to replace dust bag every 2 months. It depends on your usage. Package contains:12 Pack Vacuum Dust bags. Our vacuum dust bags have the same quality and function as the original, we have tested them before for sale, our bags provide a seamless fit, ensuring optimal functionality, so please feel free to buy. Compatible Models: For Dreame Z40 Station Colour:As Shown Material:Non-woven fabric Package Contents: 12 * 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.