from your dealer or collective, or you can make it

from your dealer or collective, or you can make it yourself. if you dont live in a mmj state you wont be able to buy a cannacig.

there are different markets, some vapes do herbs, some oils, some both.

the special thing is that its easier to use, doesnt clog/leak like other vape pens and it is very discrete.

that last question is silly, why buy anything you dont need??