Ready to lead the subohm tank platform, the iJoy Captain Subohm Tank features a convenient top fill design, threadless coil, gold plated connections, unique heat dispersal, smooth & adjustable airflow, and a 4mL glass tank. Composed out of high quality stainless steel, the Captain is composed of the premium materials for a superior build. The thread-less coil design makes for extremely easy coil replacement and also prevents stripping internal threads, which would render the device useless. A specially designed groove has been implemented, which cuts the heat transmission route, to greatly reduce the amount of transferred heat along the unit. Ultra smooth airflow can be adjusted at the base of the unit with the help of a knurled design for a better grip. The Captain performs at a high caliber, providing an exceptional vaping experience for beginners and seasoned vaping vets.