The SMOK TFV9 Replacement Coils are designed for the SMOK TFV9 Mesh Sub-Ohm Tank. The TFV9 Tank Coil Family is offered in various ohm and coil styles and require users to thread their coils into the base, just as simple as it is sufficient. The TFV9 Tank Coil Family consists of the Meshed 0.15 ohm coils. These coil head features a large honeycomb mesh configuration for amazing flavors and rates at 0.15 ohm; this MESH can be used at 40 to 90W, however the recommended wattage is 70 to 80W. As an added benefit users can enjoy the same great vape out of the SMOK TFV8 Baby Replacement Coils.