Replacement coils for the Innokin Zenith series.
On average, Innokin Z coils will last for roughly as long as it takes you to use 20-30ml of e-liquid. This can vary depending on your vaping habits/preferences and many vapers get much longer out of their Z coils!
For each of the difference varieties of Z coil, Innokin recommend...
0.5ohm Plexus Mesh: 14-19W
0.48ohm Plex3D: 13-16W