The Serpent SMM RTA is a self-winding evaporator with a single coil deck made by Wotofo in cooperation with Suck My Mod. The tank has a diameter of 24mm and a capacity of proud 4ml. The airflow under the singledeck can be adjusted continuously. This results in a uniform distribution of air on the Singledeck, with an excellent taste developed. Another feature is the Drip Tip made of Ultem, which is particularly heat resistant even in high wattage areas.