Chemical flavorings in liquid form used to refill electronic cigarette cartridges; Electric cigarettes; Electronic cigarette liquid (e-liquid) comprised of flavorings in liquid form, other than essential oils, used to refill electronic cigarette cartridges; Electronic cigarette liquid (e-liquid) comprised of propylene glycol; Electronic cigarette liquid (e-liquid) comprised of vegetable glycerin; Electronic cigarette refill cartridges sold empty; Flavorings, other than essential oils, for use...