100% brand new and high qualityMade of high quality material, professional and durable to use, long service life.Exquisite and delicate, highly matched with equipment.recommended replacement cycle is every 1-2 day to maintain the best performance of the machineInner diameter of theHelp your robot vacuum cleaner maintain the good cleaning performance. As part of normal maintenance, Easy to remove and replace.Product name:Vacuum Cleaner PartsCompatible: For ILIFE A7 A9sMaterial:plastic + cotton fibercolour:As ShownPackage Contents:1 * main brush2 * filter3 pairs * side brush2 * ragOnly the above package content, other products are not included.Note: Light shooting 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.