The One Control Persian Green Screamer, an overdrive pedal in the Tube Screamer family. Used only once for a live performance and rehearsals. Velcro is attached to the back, but otherwise, there is almost no sign of use. A BJF-designed green effect pedal, equipped with three knobs: LEVEL, TONE, and DRIVE. - Model Name: PERSIAN GREEN SCREAMER - Design: BJF Design - Color: Green - Number of Knobs: 3 - Controls: LEVEL, TONE, DRIVE Thank you for viewing.