The Gotoh VK1-19 is a high quality and classy dome shaped control knob, it is the same knob that is used on many top of the line Japanese Ibanez guitars like the RG, S and some AZ models from their Prestige and J Custom series.

It features an all metal construction with a knurled edge to give grip and a set screw to tighten it onto the control potentiometer, it is slightly wider and taller and with a heavier knurl than the very popular Gotoh VK1-18 knob. The dome knob will fit all spilt shaft potentiometers and 6 mm metric solid shaft pots (but not large 1/4" imperial solid shaft pots), to use with split shaft pots simply line up the set screw with the split in the shaft and tighten the set screw.