M5 stylus with 0.2 mm diameter carbide ball, carbide stem, and 11.0 mm diameter x 11.0 mm long titanium base.  Minor stem diameter is 0.17 mm, intermediate diameter is 0.5 mm, major diameter is 1.0 mm.  Overall stylus length is 25.0 mm.  Stylus weight is 3.31 grams.