Carbon fiber smoktech TFV8 big baby atomizer, made of stainless steel, adopts carbon fiber material, lighter and added strength than metal, high density and corrosion resistance, makes it more durable. the new smok tank comes with v8 baby-x4, v8 baby-T6 and v8 baby RBA cores will bring vapers different vaping experience, vapers also can order the extra replacement coils for the new material TFV8 big baby tank, v8 baby-T8, v8 baby-Q2, v8 baby-M2 coils available on smokstore too. top refill design allows vapers inject e juice quickly and easily, the bottom airflow control design allows you to adjust the airflow to your preference easily.