Electro-Harmonix Enigma QBalls Envelope Filter for sale here. In great shape, works perfectly. Box and manual included - no velcro. Going through filters like toilet paper, and this is one I had to try. Definitely has an insane range of sounds, and I found it pretty intuitive to dial in after a half hour or so of playing. Distortion on this thing is killer. Just decided to stick with my current filter... Price lowered to $110 - includes CONUS shipping. PayPal only.