Looking for some recommendations on battery cables. What you guys like?

I got mine from Amazon, full copper conductor, not plated. I have both 4ga and 1ga. I prefer the 1ga. Also got 6ga for other stuff. Big thing is not to get actual battery cable but get welding cable. Much finer stranding, can carry a bit more current for a given size than regular cable, and WAY more flexible.

I have sbc and use 2 gauge (welding) for both the starter and alternator sharing the starter feed back to the battery. Consider purchasing a small hydraulic crimper for the one hole lugs.

I see some welding cable on McMaster car, but they different classes of cable . What class of cables?