Features and Specifications Diameter: 22mm Stainless Steel Construction Stainless Steel Wide Bore Drip Tip Quartz Glass Tank 4mL E-Liquid Capacity 120W Max Input (Using 0.25 ohm Dual Coil) Top Fill and Bottom Fill System Fully Adjustable Dual Airflow Control Product Includes 1x Uwell Crown Sub-Ohm Tank 1x Additional 0.25 ohm Stainless Steel Coil Head 1x Additional 0.5 ohm Stainless Steel Coil Head 1x Additional 0.15 ohm NI200 Temp Control Dual Coil 1x Spare Quartz Glass 1x Spare O-Rings