The Kanger Protank offers a great vape to users of all experience levels. The Protank has a changeable bottom atomizer that keeps a continuous flow of liquid to your coils. With its 2.5ml. glass tank it can hold all your favorite juices too! The Protank includes 2 atomizers (2.5ohms 1 comes pre-installed) and a collar to add that seemless look your ego devices. The Protank has a 510 connector to attach to all your favorite mods and ego devices.