Nordstrom's uses cone tags. So I bought a magnetic detacher from vinipooh (in my signature) and it works great. But keep in mind that if you get caught shoplifting while carrying a magnetic detacher, an s3, or the cone remover, or even a hook, it is considered a felony burglary. I highly recommend vinipooh, as well as the majority of zoklet does. His prices are the best and you get the highest quality tools as well as a sensormatic tag to help you practice before shit actually goes down. I saw that a few people tried to use a cheaper version of vini's mag. detacher and they said that things didnt go well.
I hope it doesn't seem like I'm just advertising, I just want other people to get high quality tools, and not waste money on shitty tools that don't work. Spend a little more now, and you will have a bigger profit.