This is a Skreddy Mayo guitar pedal.  This pedal works perfectly and sounds great.  This is a nice Big Muff copy.  This pedal sounds really good, nice distortion and fuzz sound!  It is in excellent condition with a few scratches and marks from use.  No velcro on the bottom.   It comes with the original box.

$12 US shipping.  The images are of the actual pedal.  Thanks for looking!