Aspire GUROO Tank, featuring a 4mL e-juice capacity, spring loaded coil installation, and mesh coils for outputting delicious flavor. Constructed from durable stainless steel, the chassis of the Aspire GUROO Tank offers an impervious resistance to falls and drops. Holding up to 4mL in the tank capacity, a threaded top fill system facilitates fills and refills with ease. Within the central chimney, the GUROO Tank can accept mesh coils in a drop in fashion with spring loaded support for easy coil swaps. At the base is a dual slotted bottom airflow control ring, offering an adjustable system to meter incoming airflow for best vapor or flavor production.