What exactly does one measure with this ?

It's a scale for porn contracts

More than just sewing. Been a very long time since I seen one, yet there is other uses.


[quote]12" ALUMINUM DESIGNER VARY FORM CURVE / FRENCH CURVE Description: 12" Aluminum Vary Form / French Curve. Draws a wide range of curves by simply turning. Practically replaces a set of French curves.

[c=000000]Indispensible to the pattern maker and graphic artist. To the longer contours of the body, it adds the more defined curves[/c][/quote]

Also used in architecture as well as logo designs. Which is both where I first saw one.

It's a sewing tool. used to gauge smooth curves.
I do believe it is called a French Curve.

Looks like penis can attach to things

Oh we all know the answer

Ahahaha. You are fun.

😳

...not very accurate..lol