Date Region Description Price Seller
USAWorks properly. ![Mad Professor Royal Blue Overdrive](https://rvb-img....$107.00
USAOne of the best overdrive pedals! Transparent, touch-sensitive goodness....$110.00
USAPedal is in great shape and in perfect working order. Does not ship in t...$113.33
USANeed a new dirt box? Of course you do. This one sounds amazing, is very ...$129.00
USAThe Mad Professor Royal Blue Overdrive delivers smooth, dynamic drive th...$130.00
JapanOverdrive with a wide range of tones The Royal Blue Overdrive (RBO) is a...$219.97