M5 stylus with 0.6 mm diameter ruby ball, stepped carbide stem, and 11.0 mm diameter x 9.0 mm long stainless steel base. Minor stem diameter is 0.4 mm, major diameter is 1.0 mm. Overall stylus length is 22.1 mm. Stylus weight is 5.65 grams. Compare to Zeiss 626115-0060-022.