Diago Blue Adaptor + Tip 3.5mm Jack
* Used to power some Electro Harmonix, ProCo (RAT etc.), older DOD, Jacques, and other pedals
* Reverses polarity to a positive tip, 3.5mm (1/8") mini jack plug
* Buy as many as you need, one for each pedal
* Just plugs on to your existing daisy chain cable