1、Nut Diameter: The diameter of the nut thread connected to the polishing machine is approximate 12.5mm/0.5in, please check whether this nut size is suitable for your polishing machine before purchasing. 2、Premium Materials: Polishing pads are made of premium plush materials that are soft and comfortable to the touch to protect your car from damage when polished and cleaned. 3、Wide Application: The 6in/150mm polishing pad is ideal for detail polishing, polishing, waxing, glazing, compounding and final polishing, ideal for automotive beauty treatments. 4、Washable and Reusable: The polishing wheel is washable and reusable, and regular cleaning and keeping dry after use will extend the service life of the polishing pad. 5、Including: The polishing pad set includes polishing pads, polishing wheels and adapter nuts, which are sized to fit and can be put on directly and are not easy to fall off.