M Pro 2 is an updated successor of the reputable M Pro tank. It is still slide-to-open top fill design, but is added with 3 steel balls to increase the friction when slide to open the top cap. A new series coils comes with the tank - 904L M1, M2, M3, and M4 mesh coils. The coil tech is also updated to FM COILTECH4.0 with military-grade SS904L mesh material and tea fiber cotton for more stable vaping experience and refreshflavors. What's more, the tank is newly designed with stunning diamond glass tube together with resin colors, integrated with beauty and durability. Three steel balls are added into the top cap to increase friction, you can still fill the tank
with single hand but there’s little chance of loosening
top cap and potential leaking. Super easy operation: slide-to-open the top cap from the red mark; fill e-liquid; adjust the airflow then enjoy vaping.