Why a special cutting ruler? You can not do without it!
The blades of rotary cutters are very sharp, so if you use a ruler of wood or plastic, the knife cuts in the ruler and as a result no straight lines anymore.
In addition, a cutting ruler has just a raised edge with a steel strip so that the rotary cutter can run along very fine and neat. And the rulers are special aluminum ... so no oxidation of the latex, so no nasty stains afterwards ...
The ruler of 100 cm is useful if you make big latex clothing is like a catsuit and jeans.
And the set of four rulers is super convenient to draw curved lines and cutting! The set is called kleermakerset or coupeuse rulers, or fashion designer kit.