A cable with a 2.1mm right angle and 2.5mm (red) right angle barrel connector and reverse (center positive) polarity designed to power Line 6 DL4/MM4 digital modeling pedals, Eventide Factor, some Electro-Harmonix and Voodoo Lab Pedal Switcher and Control Switcher. Power Supply Connector: 2.1 mm Right Angle Barrel Plug - Pedal Connector: 2.5 mm Right Angle Barrel Plug - Polarity: Reverse (Center Positive) - Length: 18 in / 46 cm. Color: Black.