The special feature of the Forever Pininfarina Aero stylus is its tip. Made of Ethergraph, a special metal alloy, it allows writing without ink. The pen itself is made of the aluminium alloy Ergal. Its appearance is defined by the empty core of its body, which is encompassed by a filigree, slightly twisted frame. This design is inspired by the symbol for eternity. The pen is complemented by a concrete base, which forms a deliberate contrast to its delicate form.