Advantage:
1. Inner cartomizer does not move as the end cap(can be screwed out) function like lock
2. Large volume, long use
3. Big vapors and strong throat hit, good taste
4. No leakage
5. Nice design

Description:
1. Resistance: 1.5ohm
2. Content: 6ml /3.5
3. Unite weight: 20G
4. There are three parts in it:
A. Tank Tube
B. Dual coils cartomizer with a hole
C. Drip tips
5. Thread: 510 thread