If you are building scale models or Gunplas, you may want to make equidistant markings or holes following different patterns. They may be needed to engrave locking mechanisms, simulate rivets, or install conduits, fairings, etc.
If we are doing it over a curved surface like a plane fuselage, the body of your Gunpla, or a tank turret... we cannot use a regular ruler.
These flexible solutions conform to any curved surface.
We have to prepare each shipment individually as they are ordered, so allow it 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.