The ones I saw were small - maybe 1 1/2 to 2 cups, but better than having your liquid flavors go sour IMO. Not cheap either BTW.
I used SugarShack's BC with the Peppermint Mocha and French Vanilla mixed - everyone loved it - just enough subtle flavor that they couldn't figure it out!!
They also have them in the liquid form in the dairy section. Saw them yesterday. I saw Gingerbread flavor.