Luminlay knobs TB series/-5+5/for 6 shaft/only top knob/1pc
Luminlay metal knobs with glow in the dark numbers.
Luminlay knobs for stacked knobs.
TB series is with -5+5 numbers, 15 mm in diameter, and for 6 mm shaft.
Top knob only.
You can use as small knobs for basses, too.