This is a tried and true variable voltage eCig. Just as the name implies it gives you the ability to adjust your voltage between 3 and 6 volts in .1 volt increments!
The 18650(2200 mAh) batteries keep it going strong all day even for heavy vapers!
It has 510 threading and will fit any 510 threaded device like DCT 510 tanks, Vision Vivi Nova tanks(my personal favorite rig is one of these with a Vivi Nova), it also comes with an adapter to fit any eGo threaded device.
The LavaTube Variable Voltage Premium Starter Kit includes:
(2) CE4 atomizers (clearomizers)
(2) 18650 VV Power Batteries
(1) 510 to eGo adapter
(1) Presentation Case