The file '2006 Dalek Eye Stalk Rings 3D Printer Model' is (stl) file type, size is 33.8KB.
These should be the proper dimensions. I printed them in glow in the dark PLA. Layer height (mm) 0.2, Shell thickness (mm) 0.8. Bottom/top thickness (mm) 0.6 and the fill density (%) 20.