'Z' easiest insert around. The nifty Jetline Z-torch insert allows you to easily transform a ?zippo? style flint lighter into a scorching cigar lighting machine. Lift out your lighter?s existing flint system, slide the Z-Torch in its place, snap to secure, and you?re done. The Z-Torch uses butane, so it?s easy to fill and maintain, and won?t impart any acrid tastes or smells to your cigar. The most impressive part about the Z-Torch is its performance. This insert features a double-flame wind resistant jet that keeps up with the some of the best lighters on the market. At first, I was a bit skeptical about the Z-Torch, but once you see it in action you?ll be a believer too.