NOT FOR SALE TO MINORS: This product may be hazardous to health and is intended for use by adult smokers. Keep out of reach of children or pets. SPRK products with nicotine e-liquid are not suitable for use by: persons under the age of 21, pregnant or breastfeeding women, or persons who are sensitive or allergic to nicotine, and should be used with caution by persons with or at a risk of an unstable heart condition or high blood pressure.