Two gold-tone anodized potentiometer knobs for use with amplifiers, preamps, guitar amps, radios and other devices that have 6.0 mm diameter potentiometer shafts. The great looking knobs are high quality and precision machined from an aluminium alloy. The knobs have a knurled finish around their circumference. These knobs do not have a plastic insert, they are CNC machined from one piece of solid aluminum, with a durable blue anodized surface finish. Dimensions: 25 mm diameter, 15.5 mm height, 6.0 mm shaft hole diameter.