Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not The Real Thing

"Copper wire" means wire made of copper. At least that's what it used to mean back when I was in EE school. Here it means aluminum wire with a *very* thin coat of copper on top. The proper term for this stuff is "copper clad wire".Why should that matter? Copper conducts electricity better than aluminum. It's also more expensive. If I pay for "copper wire" I expect to get it. Aluminum has half the conductivity of copper. In a battery cable, that means you need a cable that's twice as big if it's aluminum.If you are looking for good jumper cables - look elsewhere. You can get the real thing for the price you are paying for these !!!!