ID Needed for Woodmizer Roller

[quadracutter222]

Hi all, hoping some Woodmizer savvy guys can weigh in.  I am looking at these as replacements for the plastic pressure pads on my mill and wondering if some WoodMizer guys know a few details.  

I am wondering what the roller is made of, and how much adjustability is possible in what is shown in the picture only.  If the vertical plate is mounted to the mill, how much adjustability is left?  Vertical and Horizontal or just tip front to back?  Also, I assume the roller is metal?

I can get these locally and for less than the Cooks, but perhaps not a good option if adjustability is limited.

Thanks!

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[donbj]

That's not a wood mizer set up

[Woodpecker52]

This is wat woodmizers  blade guide rollers look like.