1、Including 2 tone knobs and 1 volume knob making your playing more convenient and attractive. 2、Engraved with letters and numbers the adjustment is easier and more accurate with these knobs. 3、Clear numbers and beautiful colour make the control knob a beautiful decoration on the guitar. 4、Easy to install with small size and light weight also very easy to carry and store for daily use. 5、Made of premium ABS material all the control knobs are very durable for long-term use.