M5 stylus with 0.8 mm diameter ruby ball, stepped carbide stem, and 11.0 mm diameter by 20.0 mm long stainless steel base. Minor stem diameter is 0.5 mm, major diameter is 1.0 mm. Overall stylus length is 32.0 mm. Stylus weight is 7.12 grams. Compare to Zeiss 602030-8060-000.