Description: Materials: Metal, Plastic Color: Red or black Circuit wiring set pickup selector 1V/1T/1J is designed for acoustic guitar Durable and low voice 2 pieces resistance potentiometers (1 piece of A500K, 1 piece of B500K) 1 volume and 1 tone control with a 6.3mm jack socket Size Chart: Shaft length: Approx. 18mm/ 0.70inch Base diameter: Approx. 16mm/ 0.62inch Line Length: Approx. 63cm/ 24.8inch Package Includes: 1 set of acoustic guitar electronic circuit wiring 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