This is Original
Roland XP-30, XP-50, XP-60, XP-80, W-50,

JV-30, JV-35, JV-50, JV-80, JV-90, JV-1000,

Fantom G-6, G-7, G-8 Synthesizer 

Original Black Slider Cap/Knob

Made in Japan
Used, but still in a Great condition.