The SMOK TFV8 Baby V2 Coil is designed for TFV8 Baby V2 Tank. It comes with 3 colors and 3 different coil resistance. A1 0.17ohm mesh coil has a big hole inside. The design is simple yet have excellent effect. A2 0.2ohm coil has two holes inside, and both of the holes have cobra mesh covered. A3 0.15 coil has three separate heating coils inside, combining with 3 larger airflow slots at the bottom of the tank.All the coils can bring you unprecedented huge & thick vapor! 3 pieces each pack.