Set of two. Cast with Smooth-Cast 320.
You will only need 1 set per droid.
These are poured in an open face mold with a slight overpour. They have then been placed in a CNC and milled to the correct dimensional thickness.
We do use Mold Ease on our molds so these parts should be washed with dish detergent to remove any residue. If you are not using a plastic primer we also recommend that you lightly sand with 600 or 800 grit sandpaper to ensure good surface for primer. Seriously, it doesn’t take much just a lightly go over the part.