Two 150 mm x 12.7 mm polishing and polishing wheels with shellac centre hole reinforcement.Easy to install: 12.7 mm centre hole fits most table grinders and polishers. The polishing wheels make your work easy and effortless and also improve work efficiency.Stitched design: the sewing style makes these polishing discs robust and is perfect for cutting and polishingDiameter: 150 mm face, 12.7 mm pin hole.[Usage] Polishing discs are perfect for brass, aluminium, bronze, stainless steel, chrome, cast iron and other metals. The speed should be below 3600 n / min.Colour: white+yellowMaterial: cotton clothPackage Contents:2 x Polishing Wheel Pad KitOnly the above package content, other products are not included.Note: Light 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.