Innovative water bottle and cartridge system that makes drinking water more delicious, fun, & personalized. Zero sugar, zero calories, & no artificial flavors or colors. Each Concentrated Flavor Cartridge can flavor around six 20oz fully flavored bottled beverages. Flavor Dial gives you full control of your delicious flavor; dial up or down as you please. This Starter Kit is the perfect way to get started with Cirkul. Each box includes one 22oz Plastic Water Bottle, a Blue Comfort Grip Lid, and 2 flavor cartridges that are great for adding refreshing flavors to your water. Want to drink more water?