Those of us who enjoy making scale models often find ourselves having to scribe panel lines. This is especially true in aircraft and ship modeling, as well as in Gundam.
When you have to scribe a line at a certain distance from the piece edge, but you have to do it on a constrained space, or on a curved surface, doing it by hand is not easy, and using a flexible metallic ruler as a guide may not be an option.
This is where this tool comes in handy. You adjust the guiding piece at an adequate distance using the included ruler and start scribing using the sharp needle.
We have to prepare each shipment individually as they are ordered, so allow it in 3-4 weeks to arrive in the USA/Canada (to be safe) and 3-6 weeks rest of the world, though they are usually delivered much faster.