I bought a nice new glass one-hitter at the smoke shop a few days ago. It looks like a small blue chillum. They can usually fit more than one hit if you pack it right, but you can pack just enough for one hit if you know how much you can handle. They have several advantages, one of which is every time you pack it, you get a green (fresh, no ash, tasty) hit. They conserve your bud a lot, and it isn't very obvious that you're chiefin' weed, especially if you have one that looks like a cigarette. If you're into stealth, they're awesome for that too as there's reduced smell, and if you only pack a oney, there's no smoke at all - if you blow into a spoof that is. Overall they're awesome. Perfect for public or just chilling.