When using, the speed of the tool should not be too fast. It is recommended to use the lowest . Excessive speed can easily cause the brush apart and affect the service life.Different materials and shapes fit for different use. They are all suitable for fine polishingBuffing wheels diameter: 1 inch(25mm),Shanks are 1/8 inch (3mm ).3mm Mandrel Polishing Wheels fits most Tools, Polishers, Hand Drill etc.Wide applications, make polished goods clean and shine, perfect for Jewelry, Watches, various mould, glass, equipment, mirror, metal surfaces, etcColor: yellow + whiteMaterial: artificial wool+clothPackage Contents:8 * Cashmere brush8 * felt brush8 * Thread brush8 * cotton cloth brush8 * yellow cotton10 * felt polishing headOnly 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.