String Instrument Accessories -Guitar Potentiometer,A250K Guitar Potentiometer Highlights Generic Brand Guitar Potentiometer,A250K Guitar Potentiometer Description: 2 pieces high quality Alpha Guitar A250K Tone Potentiometers Best for Electric Guitar/Bass, A250K Control Potentiometer -ohm Split shaft with long knurling Coarse knurled shaft fits most control knobs Shaft length: 18mm Material: Copper Size chart: Shaft diameter: approx. 6mm/0.23inch Shaft Thread Diameter: Approx. 8mm/0.31inch Shaft Length: Approx. 18mm/0.7inch Base Diameter: Approx. 24mm/0.94inch Length (whole): approx. 29mm/1.14inch Package includes: 2 A250K Guitar Potentiometers (2-pack) Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement, there may be 1-2mm error in size.