Hey ECF, this is Chelsea from Vaporesso, it is indeed a great pleasure to meet you all here. I am so glad to say here that we are now able to tell you about what we think is the most important innovation in vaping for some time - the Estoc Tank and EUC coils: At Vaporesso, we've been aware for some time that coils tend to be overengineered and consequently expensive and wasteful. So, our engineers have been working on a radical new design to solve this, and we can now introduce to you the result... EUC stands for Eco Universal Coil and the ESTOC tank is the FIRST on the market featuring this beauty. This technology will allow you to replace only the core of your atomizer (the EUC) by dropping it in and out of its casing within the ESTOC. Since the outer metal sleeve of the coil is built into the tank, you will save save TIME, MONEY, and the ENVIRONMENT all at once. EUC is designed to deliver cloud-sized vapor with the purest flavor of your favorite juice. Its core heating element is as powerful as any full atomizer head and capable of performing on a wide range of output settings. The EUC is a radical innovation, and retains all the vaping quality Vaporesso have become well-known for. It's available both in traditional organic cotton and with our cCell ceramic technology. The EUCs can also be purchased with an adaptor that allows them to be used in many other popular brand tanks, so if you're happy with your tank, just pick up a pack of EUCs and carry on!