سر ولوم خورشیدی MF-A04

سرولوم خورشیدی MF-A04

MF-A series is boss type knob with white indicator wire.
It’s ABS  material, Chrome with Silver Cap, also have a special skirt base. Also it have many different size.
For this black version knob that’s a common replacement part for older BOSS pedals or customizing effects pedals that have smooth-shaft pots with screw fix.