You get 5 for the price of 4 with this item.
Replace your ProTank or eVod bottom coil head with this item, make it new again.

Please note, the coil is changed by removing the entire base and then removing the coil unit, replacing it with this unit.

This is the NEW BOX from Kanger with both evod/ProTank printed on the outside, they have changed boxes, please be aware.
All Protank and Evod coils are the same item.

These will also fit on the eVod but will not work with the T3s/MT3s