Where is his special? Smkon Polarice RTA Rebuildable Tank

Smkon Polarice RTA Rebuildable Tank is a new member, Do you know it's special ?
You can see the wire working condition directly from outside.


Features:
Glass tank
2ml tank capacity
Visible wire working condition from outside
With straight insert lock assembly structure, easy to use
16mm large space of the dual post for cotton or coil
Dual posts with 4 holes for dual coil building
Can refill the e-liquid by rotating 90 degrees on the top
510 threading connection
25mm overall diameter