The coils available are:F1 Falcon Coil: 30% wood pulp + 70% cotton, 0.2ohm, 80±10WF2 Falcon Coil: Natural flax fibre, 0.2ohm, 80±10WF3 Falcon Coil: Flax fibre + flax paper, 0.2ohm, 70±10WM1 Falcon Coil: Mesh Coil, 30% wood pulp + 70% cotton, 0.15±0.03ohm, 70±10W