Liberty V6 made of vertical ceramic coil Pyrex Glass tube Suit to 510 Thread vape pen battery Top air flow, solve the problem of oil leak from the bottom air oil. 100% Anti-leakage 2 top airflow holes Vertical Ceramic Coil Top-filling Top Airflow 4 * 1.0mm Intake Holes 1.2ohm dual coil 0.5ml capacity Top filling&Top airflow 1.0mm oil hole can suit for thick oil