Features: Electronic control knob for 6mm-6.5mm shaft, volume control button, audio button, guitar button, electric guitar switch buttons. Suitable for shaft hole diameter: 6mm/0.24 inches, Size: approx.1.95x1.6cm/0.76x0.63inch. 360 degree rotating knob for easy control of the potentiometer. The rotary knob of the potentiometer is useful for connecting the rotary potentiometer. Usually a multiturn linear potentiometer that alway serves as a volume control switch. Specifications: Material: PVC Color: As The Picture Shows Package Weight: approx.20g Size: approx.1.95x1.95x1.6cm/0.76x0.76x0.63in Package Includes: 5Pcs x Guitar Tone Volume Knob note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!