Encoder knob black for Yamaha mixers TF1 TF3 TF5 MG-20XU

Encoder knob for Yamaha mixers:

TF1 TF3 TF5: 

ST IN 1 LEVEL,ST IN 2 LEVEL,USER DEFINED KNOBS A-D,FX 1 LEVEL,FX 2 LEVEL

MG-20XU: program

Part no: ZJ237900