This Starter Kit is a new and exciting way to get started with Cirkul. The larger bottle allows for less refilling and more hydrating! Each kit includes one exclusive 32oz Matte Black Stainless Steel Water Bottle, a Matte Black Comfort Grip Wide Mouth Lid, and 2 flavor cartridges that are great for adding refreshing flavors to your water. Cirkul flavor cartridges have zero sugar, zero calories, and no artificial flavors or colors. We understand that drinking enough water can be challenging. At Cirkul, our mission is to make drinking water delicious, convenient, and fun.