A sour powder candy with a caffeinated boost. Each tube comes complete with 200mg of caffeine and 8g of powder. Comes in 5 different flavors: cherry, lemon/lime, fruit punch, watermelon, and blue raspberry. The recommended consumption method, other than just pouring the entire tube down your throat, is pouring the contents of the tube under your tongue and letting it dissolve; swishing it around in your mouth; savoring the flavor and then feeling the buzz; and then swallow. Sounds like another substance that's a little less legal...($7.99 @ ThinkGeek)