Cartridges sold filled with propylene glycol for electronic cigarettes; Cartridges sold filled with vegetable glycerin for electronic cigarettes; Electronic cigarette liquid (e-liquid) comprised of flavorings in liquid form, other than essential oils, used to refill electronic cigarette cartridges; Electronic cigarette refill cartridges sold empty; Electronic cigarettes; Cartomizers, namely, combination electronic cigarette refill cartridges sold empty and atomizers, sold as a component of el...