SHEAFFER PRELUDE MPI.
The Sheaffer Prelude MPI (Multi-Purpose Instrument), is an innovative and practical writing instrument that converts from a ball pen to a highlighter with one simple twist. Ideal in the office, at home, for students or for readers, the MPI features a ball pen point when you remove the cap. Twist the barrel and a yellow felt-tip point emerges to highlight your way through any document. The ball pen ink is formulated not to smear when you highlight your words. The popular Prelude profile is available in Fluted 22K Gold Plate, rushed Chrome Plate and Black Onyx Laqué.