K2 Kit not quite hitting the spot? The K3 offers extended battery life, higher liquid capacity and the famous Nautilus Coil for that bit extra "oomph"!
 
Specifications:
 
Liquid Capacity - 2.0ml
Coil Type - Nautilus Coil
Draw Style - MTL (mouth-to-lung)
Diameter - 18.5mm
Airflow - Fixed
Replaceable Glass - No
Tank Material - Metal/Glass
Fill Method - Bottom-Fill
Battery Capacity - 1200mAh
Height - 84mm
Built-In Battery - Yes
Charging Method - Micro-USB
For High VG Liquid - No