1. screw cartomizer onto SEALED Leo battery.
2. gently twist and pull off just the black plastic from the cartomizer casing (in the same direction if you were tightening it).
3. remove rubber plug at top of cartomizer
4. fill via slow drip or syringe
5. replace rubber plug and black plastic cap.
6. Once it has finished absorbing, give it a good shake to remove any excess e liquid from the chamber.
Available in Black - Sold per piece - These will sell out fast.