Satin Finish Buff, Fine, 4.5 Inches By 1-1/8 Inch | BUF-714.10 Ideal for giving gold, silver and other non-ferrous metals a satin finish Made of aluminum oxide and treated with a special resin 1/4 inch hole for tapered spindles Red buff, fine 4 inches by 1-1/8 inch (100 millimeters by 30 millimeters)