This used Mission Engineering SP1-ND Quad Cortex Neural DSP Expression Pedal is in Excellent condition with minor signs of handling and use.  This pedal is designed specifically to work with the Neural DSP Quad Cortex floorboard amp modeler.  Comes with its Original Box.

FROM MISSION ENGINEERING:

The pedal connects to the EXP inputs on the Quad Cortex. The linear potentiometer is matched exactly for a precise and natural response. The toe switch can be used turn effects on and off without requiring a separate footswitch.