The Geekvape Z Sub-Ohm SE Tank CRC (5.5mL) is a special edition tank that is equipped with a child safety lock for extra security. It comes with an innovative quick-change prebuilt coil system that creates pure flavor and massive vapor thanks to the Geekvape Z Series Coil. What’s more remarkable is that theses new z coils are upgraded to have twice the lifespan of regular coils. Furthermore, it features a leakproof top filling design and an adjustable airflow to generate big clouds and enhance your vaping experience.