Volume and tone knobs: great replacement for your broken, dirty or old control knob. Cool guitar knobs: fits shaft import concentric pots and split shaft pots. Volume tone control knobs: control knob volume tone aluminum alloy metal guitar parts accessories control knob for musical instrument bass guitar. Bass control knob: it is suitable for guitar bass and replacement. Good Feeling For Turning:These volume knobs are made from solid steel and are suitable for most electric guitars guitar knobs are compatible with most of any electric guitars, it is a nice DIY product for musical instrument lovers.It's a Perfect gift for musical instrument lovers,and the black color can suitable for all guitars, giving your instrument a sleek and modern look that is sure to turn heads back.The dark color and metallic finish of the knob can complement any guitar finish or style, giving it a cool and edgy appearance; Color: black / silver Material: Metal Size: 2x2x1.9cm Package Contents: 4 * Black guitar knobs 1 * wrench / 4 * Silver guitar knobs 1 * wrench Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.