Hello!

I am trying to get a 3D model of a cable with a mass.
Where and how should I set the linear mass parameter?
I found it on several tabs (attached pictures). But the resulting cable in 3D has a mass significantly different from the value obtained by multiplying the length by the linear mass.
I do not understand where I am mistaken.
I have SolidWorks 2020 SP2.

Thanks!