Features:
1. Airflow control structure with 4 air holes on the sleeve
2. Big and stable vapor
3. Super easy to re-change wick and wire
4. Resistance can be customized based on your demand
5. Electrode is made of copper, good conductivity
6. Dimension: 22 mm (D) * 53 mm (L)
7. Fit 18650 mods perfectly
