BATTERY-SAVING - By swapping out the front caster wheel every few months, it prevents dust & grime from building up and jamming the wheel, decreasing its ability to roll efficiently.KEEP YOUR HOUSE SPOTLESS & CLEAN - By regularly replacing the wheel on your robot vacuum cleaner, you can expect to enjoy excellent surface-cleaning results all the time.HIGH-QUALITY MATERIALS - Not sure if these wheels will withstand daily wear and tear? All the components in this front caster wheel are made of high-quality material.Colour: blackMaterial: plasticPackage Contents:1 * Left Wheel1 * Right 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.
