Made 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 week to maintain the best performance of the machine.Help 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 Proscenic M7 proColour: picture colorMaterial: plasticSize: about 28x10cmPackage Contents:1 * Water TankOnly 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.