Aazon.co: ONEC 5pcs Silver Tone Top Rotary Knobs for 6 Dia.Shaft... Size: 19.5x11mm /0.76'' x 0.43'' (D*H) Fit for Shaft Hole Diameter:6mm/0.24'' Package Content: 5 Pcs x Potentiometer Rotary Knob International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. See more product details 5 Pack Potentiometer Knob Set Uxcell 5pcs, 6mm Potentiometer Control Knobs For Electric Guitar Volume Control Knobs When using, you need to push the knob hard. Replacement part for audio device, 6mm round shaft can be push on it easily. Just potentiometer knob, potentiometer is not included here. Descriptions: Potentiometer Rotary Knob is useful for connect the rotary Potentiometer, usually multiturn linear potentiometer which always use as volume control switch. Can be used for synthesizers, electric guitars, etc., Size: 19., 5x11mm /0., 76'' x 0., 43''(D*H);Fit for Shaft Hole Diameter:6mm/0., 24'';Package Content: 5 Pcs x Potentiometer Rotary Knob Potentiometer Knobs (257 Features: Product Name: Potentiometer Rotary KnobMaterial:PlasticColor:Silver,BlackFit for Shaft Hole Diameter:6mm/0., 24''Size: 19., 5x11mm /0., 76'' x 0., 43''(D*H)Type: Screw TighteningPackage Content: 5 Pcs x Potentiometer Rotary Knob Electronic Control Potentiometer Knob For 6mm Diameter Shaft,Volume Control Knob, Audio knob, Guitar Knob,Electric Guitar Knobs,Encoder Code Switch Knobs