Review on 🎧 Audiopipe 0 Gauge Wire Reducer: Streamline Your Audio Setup with this Efficient Product by Carlos Damain

They are definitely of good quality. Very well milled but there is so much excess metal on this thing that it's not necessary. You can definitely fit more than zero gauge into them. And it's easy to shave half its exterior to accommodate many more types of amps. And the second note says it fits 4 gauge, but that's a lot in my opinion too! more! than the normal gauge 4. For reference, see my photo for the size. 1 1/4" outside from one pin to the other and 1 3/4" outside on the other end