Made of high quality material, durable. Can be easily removed and replaced as part of normal maintenance. Easy to install and reliable to use. It is recommended that you replace it every 2-3 months or thereafter to maintain the best per compatiblemance of the machine. Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! : Material:cloth Package Contents: 10 * Replacement Dust Bags 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.