DOVPO BLOTTO RTA has 2ml liquid capacity. It is unique for the top refill design which is easy to fill on top. This rebuildable tank atomizer is compatible with dual or single coil. The 242°of airflow direct to the coils will bring smooth flavor. By offering three types of glass tubes, this RTA is comfortable for users to operate. The adjustable airflow system creates milder and smoother flavor plus richer clouds, which brings users comfortable and safe vaping experience.