Description The item is Guitar Amp Potentiometer. Audio/Log pots are typically used for volume control, and Linear pots are typically used for effects. A20K-ohm control pot, split shaft with coarse knurling, fits most control knobs. Besides, nice potentiometers for chioce. Features - Color: Chrome. - Material: Plastic, metal. - Shaft Length: Approx.18mm/ 0.7 inch; Shaft Diameter: Approx. 6mm/ 0.24 inch. - Base Diameter: Approx. 16.5mm. - Resistance: 10K Ohm. - A20K Electric Guitar Potentiometer Audio Tone Control Taper Potentiometer Guitar Accessory. - audio-potentiometers, perfect for replacing and upgrading tone controls. - Coarse knurled shaft fits most control knobs.Packing list: 1 * A20K-ohm Control Pot Guitar Audio Tone Potentiometer with Split Shaft 18mm GP202