Heavy-Duty Auto Jumper Cables - 20Ft x 4-Gauge Copper Wire

The cables I received were not as advertised. They were heavy gauge Aluminum wire surrounded by fine Copper wires concealing the cheaper internal Aluminum core wire. You could easily see the Aluminum where the ends of the cables had been cut off to fit into the clamps. Otherwise the cables seem to be of acceptable quality. I was very disappointed, sent them back for a refund and gave them one star for Bad Art.

I wanted Heavy duty, so thinking the guage of wire ment heavy duty these would fit the bill. I received them quick as always with Amazon, but the first thing I did was try out the clamps and they are CHEAP and I do mean CHEAP. The clamps look like the heavy duty clamps that I'vs used but they are deceiving. When you squeeze them it's hard to keep them from twisting sideways. Next time I will buy them local so I can feel them before I buy them. I can still use them because I don't need to use them very much but would not recomend them. If they upgrade the clamps they would be great because the cable is thick.

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The product description is Heavy-Duty Auto Jumper Cables 20Ft x 4-Gauge Copper Wire but the word copper should be in quotes. This is aluminum wire.

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Surprising quality. There was only one previous review when I bought these cables, so I thought I'd add a bit more detail. They appear to be what I was looking for: real copper cable and real copper clamps (as opposed to copper plated aluminum). Additionally, the clamps have teeth in the front and the side, thus avoiding the pitfalls of gimmicky clamps designed to work for side-post batteries.

In terms of thickness I'm not that well versed in cable-gauge, though they look to be either the advertised 4 (but may actually be 6), either way should be enough for a few starts of a standard car/truck.

Only four stars because (thankfully) I have not had to use them yet, so cannot speak to their actual usability.

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Seller took no responsibility for shredded storage bags for both items. Made of material as thin as food plastic wrap. Poor experience and inferior product. Cables looked decent, but I bought these so I would not have to buy a storage bag. Told me to return to Amazon and that they had no explanation for the quality of their product.