Description Our solid aluminum potentiometer control knob, is good for enhancing your audio equipment. Designed for use with amplifiers and sound systems, this knob features an inner hole for easy installation. Whether you're replacing old radio knobs or upgrading your guitar control knobs, this sturdy and stylish knob ensures precise volume adjustments and a sleek look. Features -Color:Silver -Material:Aluminum Alloy -Size:2.70X2.70X2.40cm/1.06X1.06X0.94in(Knob) -Size:5.50X2.50X0.20cm/2.16X0.98X0.08in(Wrench) -Inner Hole Diameter:4mm -Sturdy construction: made from solid aluminum alloy, this potentiometer control knob is designed for long term use without wear and tear -Good size: with dimensions of proper size, it is easy to install and operate, fitting comfortably in your hand -Precise fit: the inner hole diameter is ideal for audio amplifier volume encoders, ensuring a secure and accurate fit -Elegant design: crafted with fine workmanship, this knob not only performs well but also looks aesthetically pleasing -Equipped tool: comes with an inner hexagon wrench, making installation and adjustments even more convenientPackage list: 2 x Knobs 1 x Wrench