Smok TFV8 Baby V2 Tank Replacement Coil Heads include A1, A2, A3 core. A1 coil has a large hole inside for enlarge the area to cover the cotton. A2 coil features dual holes inside, both of them covered with cobra mesh which bring more airflow and offer you massive vapor. A3 coil has three separate heating coils inside, combining with 3 larger airflow slots at the bottom of the tank, more air can be straightly brought in

• Resistance: 0.17ohm
• Color: Stainless Steel
• Recommond wattage: 90W-140W Best: 110W-130W