Aspire ET-S Clearomizer
The ET-S has an exterior metal sleeve surrounding the tank with two small windows for you to judge the amount of liquid left in the tank. The inner part of the tank is glass and the tank holds approximately 3ml. The drip tip is permanently attached, so to refill the tank you would unscrew the base and fill the tank while avoiding the center metal airflow tube.
Not compatible with Aspire Nautilus Coils.