The Plume Veil RDA Clone is a great RDA that has three separate airflow sources. In front of the coil with the airflow control, second it has air holes through the negative posts that channel air. Third, air holes are also located at the top to cap the air and create a vacuum effect within the tank. The stainless steel constructions creates a clean finish on the tank with an under side and center contact pin that is gold plated. The center rotating I center post can accommodate many different custom builds.