Description Description Adjustable rotatevolumebuttonsis a manual with manual control. It can control the effect of a variety of functions. It can be used for synthesizers, electric guitar, etc. The Guitar Knob is suitable for people to use.Easy to install, they are not easy to age, solid material, very durable and practical to use. Features -Color:Black -Material:ABS -Size:2.50X2.50X1.10cm/0.98X0.98X0.43in - They are strong enough, not easily deformed or broken, and can be used with ease and convenience. - The electric guitar Rotary Volume Control Knob is strong and resistant to dirt. It feels better and lasts longer. - Simple installation, easy to store, knob is very comfortable to use and is anti-slipping. - The electric guitar Knobs control the effects of multiple functions, suitable for electric guitars, electric bass, etc. - With the fine workmanship, the guitar volume knob has clear scale, very convenient and practical to use. Package List4 x Electric Guitar Knobs