RARE Ibanez DFL Digital Flanger, Master (L) Series, made for only one year in Japan by Ibanez (1985-1986). I bought this pedal in 1989, when it was only 3 years old, and it's been used lightly since then, in non-smoking environments. It works perfectly, LED lights up, all knobs work through their entire sweep. With Width, Speed, Regen, and D-Time full sweep knobs, as well as D-Mode 3 position switch knob that has S (0.5-4 ms), M (1-8 ms), and L (2-16 ms) settings. My DFL guitar pedal has several usual tiny "dings" in the green paint, but far less than most other pedals it's age - I took good care of it for the entire time I've owned it. Overall in very good condition, and functions flawlessly. Many players rate this the best guitar flanger pedal effect ever produced. Ibanez DFL's are seldom seen on the market these days, and they are highly collectible! The Ibanez DFL was the first flanger to use digital processing, the IDPC (Ibanez Digital Processing Conversion) system which permits wideband, brighter flanging effects that were previously available only with rackmount digital processors. The DFL also features an extra wide 8:1 sweep ratio for deeper, wide-ranging flanging effects. This flanger is used by Tom Morello from Rage Against The Machine. Go from "plane takeoff" to "underwater" and unlimited other flanging tones, with an extremely powerful and wide-ranging set of controls. Please write with any questions. Thank you for looking!