Single Flexible Curve Ruler from Helix. This product is made in the Czech Republic. 24"/60cm Ruler. The curve ruler can be shaped and moulded around and used as a guide for drawing. Flexible Ruler.
I originally bought one of those cheaper ones with the measures on the side, which could be useful. But it was useless in terms of its function. This one has a lead core, which means it holds its shape whereas the other one did not.
Good tool for shaping curves, but it only works in 1 plane. I really wanted something to curve in any direction, but this will not bend up or down only side to side.