DescriptionThe item is Guitar Amp Potentiometer. Audio/Log pots are typically used for volume control, and Linear pots are typically used for effects. A500K-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. - Resistance: 500K ohms. - A500K ELectric Bass Guitar Potentiometers Audio Tone Switch Long Shaft. - audio-potentiometers, perfect for replacing and upgrading tone controls. - Coarse knurled shaft fits most control knobs.