For their price, they are excellent poles, obviously not for cars due to the amperage and connection method, but for other uses, for example, I used them in a photovoltaic system.
Regarding the tightening that some people mention, that the screws break, I tightened them as much as I could with a 10mm screwdriver and they didn't break. Obviously, we tighten terminals with a specific torque in electrical installations and we don't use all our strength as if we were tightening a car bolt.