Description Crafted from premium aluminum, these textured rotary knobs offer a sleek and great design that enhances the aesthetic of your audio equipment or musical instruments. The knurled surface ensures a comfortable grip, making precise adjustments effortless. Ideal for volume control, tone modulation, and potentiometer switches. Features -Color:Black -Material:Aluminum -Size:2.50X2.50X1.60cm/0.98X0.98X0.63in -Bottom inner diameter: 19mm -Holediameter: 6mm -Potentiometer knob: crafted from great aluminum, these knobs ensure durability and stability for longterm use, enhancing the tactile experience of audio equipment operation -Knurled texture design: the textured surface provides great grip, allowing precise volume control even in challenging conditions like wet or oily hands -Volume knob: combines a rotary switch with a potentiometer for streamlined panel layouts, saving space and simplifying audio system design -Versatile application: ideal for home theaters, professional recording studios, and other audio setups, enabling effortless fine-tuning of sound levels -Smooth volume transition: offers high sensitivity for seamless adjustments from low to high volume, delivering an enhanced auditory experiencePackage list: 3 x aluminum knobs