I have bought these charging cables several times in different lengths. Long ones are great, but all of them only work for a month or two, and then various problems arise and they stop working. They don't wear out, they're just poor quality. Sometimes you have to unplug and plug your phone multiple times, sometimes the piece of metal entering the phone gets lost like a loose tooth. Good if you want to buy cheap chargers all the time. I ended up spending the money on a quality charger from Target and paying the warranty because I'm tired of changing them.