Outside diameter: about 18.2mm,Total height: about 18.5mm
Fits any guitars or basses which have 6mm or less than 6mm diameter Solid or Split shaft pots; But they DO NOT fit some larger USA 1/4"(6.35mm) diameter pots; Please be sure to verify the shaft diameter of your pots before ordering, to avoid any unfit problems.
Free allen wrench is included
Please note these knobs may not fit some larger diameter USA Pots