Freemax Fireluke 2 Tank is the updated version of the previous Fireluke tank, also a part of the fantastic Twister Kit. Measuring 24mm in diameter at the base, it can hold up to 5ml of your favorite e-juice. Filling the tank is a breeze as it adopts a patented slide-to-open top fill structure with the 360-degree e-liquid feeding design. Included in each set is a 0.15ohm X1 Mesh Coil Head and a pre-installed 0.2ohm X2 Mesh Coil Head, both of them incorporate a wood pulp formula (90% flax cotton, 10% cotton), which is known to help with flavor and coil longevity. Besides the X1, X2, the Fireluke 2 is also compatible with the X3, X4 and Nx2 coils, which will meet your different vaping needs easily. 13 colors to choose from.