The Smok TFV16 Replacement Coil 3 Pack has three Coil types for you to choose from. They are Mesh Coil 0.17ohm, Dual Mesh Coil 0.12ohm, Triple Mesh Coil 0.15ohm. The TFV16 Replacement Coil is designed for the powerful TFV16 tanks. Ceramic is a material with great stability and strong high-temperature resistance, it helps to keep the original flavour.