SMOK TFV4 Top Refilling Subohm Tank with an Optional RBA Part
2015-06-30 127 Dailymotion
The Most Revolutionary Top Refill Multi-engine Cloud Tank <br />Tripple coil <br />Quadruple coil <br />RBA single coil <br />RBA dual coil <br /> <br />Details is here: http://www.smoktech.com/atomizer/tfv4.shtml
