SMOK TF2019 Tank upgrades the best features of the original TF tank. Taller tank base to increase airflow. Built with stainless steel and pyrex materials.Dual adjustable bottom airflow slots. A push to open top fill system. Mesh and ceramic coil options. Features and Specifications:Size:30mm X 56mmCapacity: 6mlRefill: Top FillingAirflow: Adjustable Airflow ControlResistance: TF BF-Mesh Coil 0.25ohm(Pre-Installed), TF BC-Mesh Coil 0.35ohmDrip Tip: Resin Drip TipThread: 510Package Includes:1x SMOK TF Tank (6ml)1x TF2019 BF-Mesh Coil 0.25ohm(Pre-installed)1x TF2019 BC-Mesh Coil 0.35ohm1x Bulb Glass Protective Silicone1x Glass Tube ReplacementUser Manual