The Fireluke 3 Tank possesses military grade SS904L mesh and Tea Fiber Cotton formula (95% Tea Fiber Cotton plus 5% Organic Cotton). Plus the FM COILTECH 4.0 technology, the Fireluke 3 Tank will bring you amazing taste and rich clouds. Moreover, Fireluke 3 Tank has upgraded top-fill mechanism to refill the e-liquid without mess and leakage. Moreover, the Freemax Fireluke 3 is compatible with Freemax X Mesh Coil.