Core RTA from Vapefly is designed by German 103 Team. It features arc-shaped dual posts and bottom multi-holes design to create powerful "Q" airflow system, thus delivering flavorful and large clouds without heat. It has 2ml e-juice capacity. With the bubble glass, the e-juice capacity can be extended to 4ml. It is easy to refill with top filling design, and is super easy to build for single...