From afar they sure look convincing, but up close you can probably tell that the battery sticker has been stuck on with general adhesive, especially when the label has a few air bubbles like mine do...

But these guys are definitely handy, only hold one cone's worth of bud each- but nevertheless cool. My only other concern is that the thread is particularly fiddly, pretty easy to cross thread the sucker when quickly re-sealing-

This is what happened today...
Me and my friend got caught smoking bud by the police. They threw our spliff away and searched us, he had my "battery in his hand and he didn't even realize i had the rest of my budz in there, I was sooo happy. This really is a very godd disguise. Looks exactly like a battery and weighs like one too. I would highly recommend it to anyone who doesn't want to get caught with stuff. Doesn't hold too much inside, but if u ground it up, it holds more than enough. I'd recommend getting two of these glorious disguises. Thank you ever so much GS :)

I bought 2 so I could put them in electronics for extra secrecy. They fit really well, and are very convincing. They ends are a tiny bit flatter than a normal battery, but its very hard to notice.
I'd recommend buying a few.

Somewhat small, hold about 1/2 g or less if grinded up.

Its heavy and looks normal whilst screwed in. Buy multiple ones if your using this for secrecy and want to store more!

FELL AS HEAVY AS A BATTERY, UN SCREWS, AND HOLDS A NICE BIT OF BUD