The Aurora Optima Mini Burgundy Auroloide Sketch Pencil. Reminiscent of the elegance of the historic pen of the Thirties - an authentic legend in its time - the new Optima maintains its unique line and all of its charm to become once again a cult object for men and women who know how to choose. The Auroloide version of the Optima range has been created using antique materials and features hand-finished trims and great attention down to the smallest detail. The cap and barrel in all versions are made of marbled Auroloide an antique material yet refined and prestigious.