1、Smart Control: Ensuring firm locking in places the rotating knob enables better control on the potentiometer to adjust tome volume etc. 2、Better Design: Moreover stripped design together with pretty silver colour makes the control knob a great decoration in your performance. 3、3Pcs in Total: There are 3pcs potentiometer cover in all and the standard size make the replacement of old and damaged parts much easier. 4、Good Material: Adopting full metal material with a sturdy structure the control cover has excellent durability for long term using. 5、Easy to Install: Light in weight and compact in size the installation of the guitar knob is very simple and can be quickly completed.