The Aspire Athos Sub-Ohm tank features rich and smooth flavor, as well as voluminous clouds that quickly fill up a room. The convenient top-fill design features a twist-off cap to eliminate messy refills, which is a relief considering the hefty 4mL eliquid capacity of the tank. The tank is designed with a stainless steel metal sleeve to protect the glass from shattering if dropped, as well as a clear wide bore drip tip. There are not one, not two, but THREE adjustable airflow slots that allow for maximum customization. The Aspire Athos uses A5 and A3 kanthal coils with multiple wicking slots, allowing for variable wattage as the vaper desires, with the A5 Penta Coil 0.16ohm firing up to 120W, ad the A3 Triple Coil 0.3ohm firing up to 75W. Aspire Athos Sub-Ohm Tank Tech Specs Dimensions: 2-1/4″ x 1″ (Including Drip Tip and Threads) Diameter: 25mm 510 Threaded 4.0ml e-Liquid Capacity Top Fill Design with Twist Off Cap Protective Metal Sleeve Design Glass Tank Stainless Steel Construction Triple Airflow Slots Adjustable Airflow Control Valve Includes (1) Clear Wide Bore Drip Tip and (1) Black Extra Wide Bore Delrin Drip Tip Utilizes Aspire Athos Kanthal Atomizer Heads for Variable Wattage Multiple Wicking Slots Includes (1) Athos A5 Kanthal Penta Coil 0.16ohm Atomizer Head (Pre-installed) (Designed for 100 – 120 Watts) Includes (1) Athos A3 Kanthal Triple Coil 0.3ohm Atomizer Head (Designed for 60 – 75 Watts) WARNING: This is an advanced user item. Use at your own risk! Please ensure that proper precautions are taken when using such devices. There is an inherent risk with the use of any and all rechargeable batteries in any circumstance. Please read and make sure you understand the users manual before use. The wattage range listed above is what is recommended by the manufacturer, you should stay within these ranges to ensure optimal device functionality flavor and protection.