Inspired by his blockbuster film , Stallone explores the concept of "chaos" in his design. He explains it as "a sense of the Renaissance, when things were more simplified and perhaps more noble, placed against our current technological society".

To visualise the concept in the format of classical art, Stallone worked hand-in-hand with Montegrappa's artisans. The pen drew references from 16th-century artworks from famed artists such as Battista Franco, Albrecht Dürer, Hans Sebald Beham and Antonio Pollaiolo.

The body of the limited-edition pen is made of black pearlised celluloid, with overlays in sterling silver or solid 18ct gold. The overlays are finished by hand by Montegrappa's master craftsmen.

The pen features an antique finish, with accents in red and yellow translucent enamel to represent the colours of fire.

The design is based on the theme of life and death, with reptiles representing the early forms of life on earth, and a skull signifying death. The pen's clip, in the form of a sword, bears a fist and a skull.

With options of fountain pens and roller ball pens, the pen is also available in a bejewelled version to satisfy connoisseurs.