Flavor enhancers add a tasty boost to your water. They are sugar-free, zero calories, naturally flavored, and USA-made. Control how strong you like it with just a squeeze. Choose from 6 different fruity flavors - Berry Pomegranate, Mixed Berry, Black Cherry, Tropical, Strawberry Lemonade, or Peach Tea. Frosty clear bottle with white snap-tight lid, spill resistant valve and shrink wrapped for tamper resistance. Black Cherry (energy) contains caffeine, B6, and B12 for extra boost.