This is a Miller Industries Control Handle Knob. It is grey in color and islabeled “Up/Down” for wheel lift tilt operations. See Features for relatedwreckers and Brochures for reference charts. Labeled Up/Down Color: Grey Century 300 Series Holmes 400 Series Vulcan 804 Vulcan 806 Vulcan 807 Century Modular 211 Product Dimensions: 1.55″L x 1.38″W x 1.38″H Inner Diameter: 0.3″ Outside Diameter: 1.38″
