This is a Miller Industries Control Handle Knob. It is black in color and is labeled “In/Out” for boom operations. See Features for related wreckers and Brochures for reference charts. Labeled In/OutColor: BlackCentury 300 SeriesHolmes 400 SeriesCentury 411_412 SeriesVulcan 806Vulcan 807Vulcan 880/890 SeriesProduct Dimensions: 1.5″L x 1.38″H x 1.38″HInside Diameter: .3″Outside Diameter: 1.38″
