What the work is
The Bic Cristal is an inexpensive, disposable ballpoint pen mass-produced by Société Bic of Clichy, Hauts-de-Seine, France, introduced in 1950.
How it was made
Bich invested in Swiss metal-shaping technology precise to 0.01 millimetres to produce a 1mm stainless steel ball. It developed an ink with viscosity that neither leaked nor clogged. The pen was designed by the Décolletage Plastique team at Société PPA between 1949 and 1950.
What works
Its hexagonal shape grants strength and three grip points for high writing stability. Its transparent polystyrene barrel and polypropylene tube show ink level. A tiny pressure-equalising hole in the barrel maintains internal air pressure.
What does not
The material does not establish durability, ergonomics beyond grip points, service life, repairability, environmental impact, or user experience beyond stability and ink visibility.
What it influenced
The material does not state what the Bic Cristal influenced. No claims about influence, legacy, or emulation appear in the sources.
Is it worth your time
Yes — it is the definitive case study in industrialising precision, visibility, and disposability in one object. Its constraints and trade-offs remain legible today.