Description The Amplifier Audio Control Knobsare designed for precise volume control in amplifier audio systems. With a compact size, these knobs are easy to install and use. The volume control knob cap provides additional protection and comfort. Made of aluminum alloy, these knobs are durable and resistant to damage. Achieve the ideal sound effect with the precise volume adjustment offered by these knobs. Features -Color:Black -Material:Aluminium alloy, ABS -Size:2.00X2.00X1.00cm/0.79X0.79X0.39in -Inner hole diameter:6mm -Precise Control: Achieve precise control over the volume of your amplifier audio system with these shaft volume knobs. -Compact: Thesize makes installation and use of these volume control knobs easy and convenient. -Protective: and enhance your volume control knobs with the included knob caps, designed for added protection and comfort. -Durable aluminum alloy: these volume control knobs are built to last for long-lasting use. -Practical: Experience the desired audio effect by making precise adjustments to the volume with these volume control knobs.Package list: 4 x knobs