FLOW pod system vape pen is lightweight (20 g or half a hamburger bun), leak-free (4-tiered leak-proof design), waterproof (nano-coating), inhale activated and lasts all day (charges in less than 40 min); it also vibrates after 15 puffs to track your usage! The starter kit comes with THREE flavor pods: fresh mint, toasted tobacco, and fruit punch. FLOW is made by smartphone maker Smartisan and safety tested for the EU, US, CA, etc.; it's also the best selling pod system vape pen in Asia! Get yours NOW!