Rare Sobbat Glow Vibe "Monkey Dance System" guitar pedal. It has history. Previously owned by guitar virtuoso, Dweezil Zappa. Dweezil bought the pedal from guitarist Blues Saraceno who had the pedal custom made with his signature plaid pattern and thus it was called "Blues Special" as seen on the front side of the pedal.
Dweezil used the pedal on tour while playing with Steve Vai. Steve noticed the pedal with some admiration and got one of his own. A little known 'secret weapon' of choice among some top guitar players.
The condition is good. It does show signs of wear with nicks, bumps and bruises from being on tour.