X5 Vape CBD oil tank is perfect for your open vape or refillable vape pen. 510 Threaded and works with most batteries available on the open market,Empty CBD cartridges with different capacities and coil hole sizes are optional.

Product Feature:
0.5ml/1.0ml capacity
1.6ohm dual coil
Top filling&Top airflow
6*1.2mm/1.5mm intake holes
Bottom Oil Absorb Design
Adjustable Top Airflow Holes