A fantastic, & fairly rare member of the ProCo RAT family A & B channels & the ability to switch between Dirty Rat, Vintage Rat, & Turbo Rat on each Has a few knocks & bumps, but works great. The screw that holds the battery cover has been lost at some point, & been replaced with something that totally does the job. The only other thing worth pointing out is that the battery clip has been taped back on at some point in its life, but affects absolutely nothing. Oh, & there’s a couple of Velcro strips where it’s been attached to a pedal board - Which can be easily removed. Thanks for looking!