The Goblin mini RTA is a brand new rebuildable atomizer from Youde. It is shorter than the previous incarnation of the Goblin RTA. The airflow valve is located underneath the tank, next to the 510 connector, to improve the aesthetics. You can regulate it via a tiny lever. Includes one clear replacement tank section, one clear replacement drip tip, replacement o-rings, extra screws, replacement 510 base, and a single coil adapter. 22mm diameter with a 3ml capacity!!