I know this is a lot of information to take in but I don't think you can go wrong with any of the kits suggested by everyone here.
KR808- Volt, Vapor 4 Life, LiteCig USA
510
Both of these are good ecigs but the limitation is the battery life. If she has access to a charger, that might not be an issue.
Riva, Joye ego both have a great battery life (8+ hours) but look less like a cigarette. They aren't huge, the picture makes them look bigger than they are but they're bigger than the other model.
KR808- Volt, Vapor 4 Life, LiteCig USA
510
Both of these are good ecigs but the limitation is the battery life. If she has access to a charger, that might not be an issue.
Riva, Joye ego both have a great battery life (8+ hours) but look less like a cigarette. They aren't huge, the picture makes them look bigger than they are but they're bigger than the other model.