At 72.8mm by 19.5mm, it is constructed of high-grade stainless steel as well as Pyrex glass for durability and utilizes Bottom Vertical Coil atomizer technology for refreshing draws. The new technology allows for long lasting, pure taste. This tank also employs four-port adjustable airflow system that allows the user to adjust the draw, warmth the vapor, and control the amount of vapor produced. Simply turn of the lower ring for four different options to adjust to the user’s different requirements. The Nautilus Mini Tank is designed to be easy to carry, install and refill for optimal performance. The kit contains the tank, a replacement BVC atomizer 1.8 ohm and an eGo threaded cone. If you are looking for an efficient, quality built tank, look no further than the Nautilus Mini Tank by Aspire.