The Hellvape Aequitas RDA Tank Atomizer is made in collaboration with AmbitionZ VapeR, a respected vaping reviewer in the industry, to present a fully comprehensive rebuildable atomizer, featuring a Gold plated postless raised style deck and top & bottom airflow. The Aequitas RDA comes with a Delrin 810 drip tip and a 510 adapter. The Aequitas features 2 airflow options. Just flip the barrel upside down then you will enjoy the top or bottom airflow. The RDA also has an included BF (bottom feeder) pin for sqounker MODs.