Liberty V1 oil Tank for thin concentrates extracts in high viscosity. Liberty cartridge refills from the top and holds a capacity of 0.5ml. Liberty cartridge features a top-flow vent, horizontal 1.6ohm dual coil, glass housing, and 510 thread connection. A dual coil powers Liberty vape cartridge with two 1.8mm oil intake holes perfect for high and medium viscosity oil. Liberty vape cartridge produces top-flow and leak-proof protection. Liberty vape cartridges have superior vape performance with high viscosity extracts and clean taste, and best of all, it has a deficient failure or leak rate. 1. Pyrex tube and wick coil 2.Top filling and top airflow 3.Low resistance: 1.6ohm 4.Intake hole size: 1.8mm and 2.3mm 5.works for CBD oil &THC oil Connection: 510 Thread Capacity: 0.5ml Airflow: Top Coil Resistance: 1.6ohm Oil Intake: 2*1.8mm Recommended Voltage Output: 3.5V Material: Stainless Steel + Pyrex Glass Height: 40mm Diameter: 11mm