Innokin Endura T18 II Tank Specifications: 2 ml Capacity Top Fill Tank with Twist Off Cap Coil: 2 x T18 Coil 1.5ohm (Same as T18/T22 coil) Four Airflow Hole Design Bottom Adjustable Airflow Control Valve Magnetic Drip Tip Cap Glass Tank with Metal Sleeve Type: Mouth To Lung