4 Pcs Metric Size Acrylic Guitar Volume Tone Speed Control Knobs For Lp Sg Electric Guitar Parts.Material : Plastic,Acrylic Is Batteries Included : no Model Number : Guitar Knobs 4Pcs Type : Volume Button Cap Origin : Mainland China Plug Type : NONE Fit for most guitars, like lp, sg style guitar;Universal: Great for electric guitar and bass,and fits for most guitar Bass with 6mm diameter split shaft pots, may not fit some USA Gibson Les Pauls guitar which have larger diameter pots; Replacement: