eGo AIO, being all-in-one style, attaches the best anti-leaking structure with 2ml e-juice capacity. It applies childproof systems: pressure twist cap of tank and five-click fire button of power supply. It is simple and convenient in use, but fashionable in look of several mixed colors and indicator light of seven colors. Its simplicity and efficiency make the device quite popular and unique. Product availability can vary per store. Website listing does not guarantee product will be in stock.