The 310 Flavor Fuser is the perfect way to add delicious flavor to your favorite beverages! Featuring a unique, easy-to-use design, the Flavor Fuser allows you to mix and match your favorite 310 flavors to create a variety of delicious custom drinks. Just add a few drops of your favorite 310 flavor, shake, and enjoy! With the 310 Flavor Fuser, you can make all your favorite drinks taste even better!