Good quality and smooth walking.For iRobot Roomba vacuum cleaner 500 600 700 800 series.For xiaomi vacuum cleaner robot parts accessories.Easy to install and operate well.Colour: BlackMaterial: Plastic+MetalPackage Contents:1 * Castor wheelOnly 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.
