Innokin Z Force Tank ZF KitInnokin Z Force coils feature a unique DuoPrime mesh design – with 2 layers of mesh heating at different rates to provide improved flavour, large vapour production and longer coil life.The coils are best used with high VG e-liquids and devices with 30W of power.Now includes the Z force size extender bubble glass.RECOMMENDED WATTAGES0.2Ω ZF coil: 50 – 80W0.3Ω ZF coil: 30 – 45W