EGOUNDESIGN designed and brought to life CENTO3: a symbolic project—the last by Achille Castiglioni, a pioneer of Italian design and one of its most influential figures. Originally designed in 2001, it was realized 20 years later thanks to the refined quality of 3D printing and a graphene-based biobased material. CENTO3 is a collection of three innovative tools for writing and drawing, all featuring an ergonomic trilobate section: a mechanical pencil, a pocket fountain pen and a multifunctional instrument.