Three days to arrive. I am very familiar with xanax. A typical bar from a pharmacy will have my palms sweating within 20 mins along with a bit of confusion, followed by a series of stupid decisions. Afterwards I have amnesia. He might put 2.5mg of alprazolam inside, but there is no way it is pure. I'd estimate it contains equivalent to .5-.7mg. I had no tolerance when I took it either. But if you buy them to sell then go for it. Just my 2 cents. I'm sure there's someone else who knows their shit.
I've bought his bars before, they sure seemed like 2.5 mgs to me.