The SMOK TFV8 X-Baby Sub-Ohm Tank features a 24.5mm diameter size and 4.0ml capacity tank. The SMOK TFV8 X-Baby utilizes SMOKTech X-Baby Beast Brother Brother V8 Core atomizer heads which are designed for both flavor and cloud chasers. From top to bottom, the SMOK TFV8 X-Baby Beast is designed for airflow and vapor production. The SMOK TFV8 X-Baby Beast features a large heating air tube for higher airflow efficiency. The large dual adjustable airflow slots can be adjusted to your own personal preferences. The SMOK TFV8 X-Baby Beast Brother provides the same powerful and flavorful vaping experience along with the new quality of life improvements that will make your vaping experience all that much better.