More Better Dual Concentric Metal Knurled Knob - Black Cowbells As well as being a

As well as being a great sounding easy to use overdrive

accommodating amp-equipped rigs and line-level inputs with equal confidence

Easy to read gage and a precision mechanism for fast

if no bridge plate is present) on the inside sound board

This amplifier is in great condition

More Better Dual Concentric Metal Knurled Knob - Black Cowbells As well as being aSingle dual concentric black knurled knob. Top Knob Dimensions: 6. 3 x 15 x 14mm 0. 25 x 0. 6 x 0. 55inch (ID x OD x H); Bottom Knob Dimensions: 8 x 18 x 12. 5mm 0. 31 x 0. 71 x 0. 49inch (ID x OD x H) The set screw uses a 2mm Allen wrench to tighten knobs, the wrench is not included.