What is this?Potentiometer knob is an important accessory for connecting potentiometers,fit for 6mm D type Shaft and can be used for electric guitar, bass, audio,amplifiers,volume control, etc.What will I get?Potentiometer Control Knob ,is in size of:Height:15.5mm(0.61 inch)Outer diameter:12mm(0.47 inch)Inner diameter:6mm(0.23 inch)Color:Black GreenMaterial:ABSButton rotation degree:270 degreesIn the package of: 20 x Potentiometer Control KnobIs there any advantages of the product?It is made of ABS material,which has high reliability and durability. Button beautiful appearance, small size, easy installation, suitable for a variety of different electronic equipment and occasions. How to use it?Steps of using:1. Confirm the potentiometer model; 2.
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