10" diameter slugs, triple stacked. The pole flare is a bit shallower and narrower than I wanted... but we'll see how it does with testing. I have the coils, spiders, cones, etc waiting for it here! Picture is from the factory, it's on the way to me soon Not showing the other side of the motor yet, sorry guys! And before anyone asks... no ETA on production, I still haven't tested this prototype yet!