The DF-7 Distortion Factory from Digitech offers very high flexibility of tonal shaping for your high gain needs. There are 7 knobs total to help shape the sound of this pedal (Level, Low Level, Mid Frequency, Mid Level, Gain, High Level, and a rotrary knob that has 7 different Distortion Models).
This pedal comes in a Boss-style enclosure and has two outputs, one for your guitar amp and one that go directly to a mixing desk. The DF-7 operates on a standard 9V 2.1mm barrel plug (center negative) and can also operate on a 9V battery.
The pedal has one little chip in the front right corner but other than that is in excellent shape!