M5 stylus with 0.2 mm diameter carbide ball, carbide stem, and 11.0 mm diameter x 10.0 mm long sainless steel base.  Minor stem diameter is 0.17 mm, intermediate diameter is 0.5 mm, major diameter is 1.0 mm.  Overall stylus length is 30.0 mm.  Stylus weight is 5.75 grams.