The SIEGFRIED is a tube kit that designed by German 103 and Vapefly. It consists of Siegfried Tube Mod and Siegfried Mesh RTA. Siegfried is made by stainless steel and designed with CNC engraving and corrosion craftsmanship, which make it more exquisite. It can work with single 18650/20700/21700 battery. The LED indicator will show you different battery levels. With 3S chip, it provides some protections to ensure your safety, such as short circuit protection, reversed battery connection protection, over-current protection. The Siegfried Mesh RTA features 7ml big e-juice capacity and innovative hollow deck design. The leaking issue can be perfectly avoided with 3-step building. In addition, Siegfried Mesh RTA comes with anti-dry-burn system with some creative designs (larger contact area between cotton and e-juice, shorter e-juice transfer distance and faster e-juice transfer). And the side airflow will bring you amazing flavor and huge cloud. 3 different mesh coils are compatible with Siegfried Mesh RTA: M1 Mesh Wire Ni80 0.2ohm (included), M2 Mesh Wire KA1 0.2ohm (included) and M4 Grid Mesh Wire KA1 0.18ohm (sold separately).