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Title: Defective Chinese POS
Review: The reason a person buys a product like this is to have the ability to pull it out of your trunk when you see a low tire and inflate it. The third time I tried to use it, it failed. I tested it on different cars, to see if it was a problem with the car's electrical power. It wasn't. I tried it on differenet tires with different valve-stems --- still wouldn't work.AMAZON should not be selling CRAP like this and then after 30 days sticking customers with a defect / non-functioning product.
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