PREMIUM REPLACEMENT ROLLER - Replace for Dyson Vacuum Part Number 966821-01, 966084-01.HIGH-QUALITY MADE - delicate and soft, effectively helps the robot vacuum cleaner to clean the floor.EASY TO INSTALL CLEAN: Easily take off your old brush roll from your vacuum head and install the new one,this roller is reusable and durable, having a long service life.EXACT COMPATIBILITY - This Burshroll is compatible with Dyson V6 and V7 vacuums.(Warm Tips: Please make sure the diameter of your Dyson vacuum head is 4.5mm before ordering.)colour: blueMaterial: ABSSize: 238x45mmPackage Contents:1 x Brush Roller1 x Clean BrushOnly 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.