Features: *Elevate Your Electronics: 10pcs Potentiometer Knobs are the perfect upgrade for your electronic devices. *Sleek Design: The silver tone top rotary knobs add a touch of sophistication to your electronics. *Perfect Fit: Designed to fit shaft hole dia. of 6mm/0.23 these knobs are compatible with a wide range of devices. *Ideal Size: With a knob top diameter of 21mm/0.82 and an overall size of 27 x 16mm/ 1.06 x 0. 63 (D*H) these knobs are the perfect size for easy use. *Convenient Package: Each package includes 10 potentiometer rotary knobs so you can upgrade multiple devices at once. Specification: Product Name: Rotary Knob Material: Plastic Metal Color: Black Silver Tone Fit for Shaft Hole Dia. : 6mm/ 0.23 Knob Top Diameter: 21mm/0. 82 Overall Size: 27 x 16mm/ 1.06 x 0. 63 (D*H) Weight: 58g Package Included: 10 x Potentiometer Rotary Knobs