The HyperTank II is the newset design of the original Hypertank. Now the HyperTank-II can be disassembled for cleaning or part replacement.Each HyperTank-II consists of a removable glass inner tank, an aluminium outer tank, a changeable bottom coil, a removable stainless steel top, a removable stainless steel base and a replaceable chrome 510 drip tip The inner tank, which holds the eliquid, is made with the glass material Pyrex, which is compatible with ANY eliquid and will not fog or crack.The aluminium outer tank is a removable cover above the inner tank and does not touch the eliquid. The outer tank has 4 windows, so you can see the juice level through windows with ease.HyperTank-II has the same bottom coil system as Kanger Protank. It can also use the same changeable Universal bottom coil for Kanger Protank andEVOD clearomizers. When the bottom coil dies, you can keep the metal base and replace only the coil head.HyperTank-II uses a separate chrome 510 drip tip. You can replace it with various drip tip for 510/901.HyperTank-II has a regular 510 connector and can can work well on most eGo batteries or devices with eGo/510 threading.Inner Tank Material: Pyrex Inner Tank Color: Clear Onner Tank Material: Aluminium Outer Tank Color: Silver Driptip Color:Chrome Top and Base Material:Stainless Steel Tank Capactiy:5ml Resistance:1.8ohm/2.2ohm What's included: 1pc HyperTank-II (resistance 1.8om) 1pc Coil 2.2Ω