Szliyands 40 x 18mm Aluminum Alloy Potentiometer Control Knob Volume Audio Electric Guitar Bass Screw Type for 6mm Diameter Shaft Black

Product name: knob, Material : Aluminum,, We have a small wrench for the knob,You may use it to adjust the shaft hole size,These knobs have no plastic inserts; they are CNC machined from a single piece of solid aluminum with anodized surface for durability., Size:40 x 18 mm / 1.57" x 0.7" (d*h); inner Hole diameter: 6mm/ 0.23"., Color:black;, Package :black rubber ring and black knob + small wrench