99% PENCIL. A pencil made of pencil: mechanical pencil, with a trilobate arched shape, made with filament in graphene and aluminum details.

SKU: 8055727120021 Category: Tags: , ,


Mechanical pencil, with a trilobate arched shape, made with filaments in graphene and aluminum details.

Each tool is individually made by using innovative additive manufacturing 3D printing techniques.

The complex unique arched shape turns out to be extremely clean in its design, ergonomic and perfect to be embraced by the three fingers of the hand. A pleasant finishing texture to the touch, with a good non-slip grip. Natural finish in graphite color.

3 mines HB 0.7mm included.

Mechanical pencil - length cm 13.0

Fuse Diameter cm 1.1

Weight g 13.0


CENTO3 distinctive features


In the additive manufacturing production process used, the junction line along the body of the object certifies the slowness and production precision of each piece, enhancing its value of time and the quality of three-dimensional printing production.

Each artifact becomes even more valuable thanks to its own mark, like a scar, unrepeatable and unique for the texture obtained from the processing of the graphene filament, for its tactile pleasantness and for the natural finishing color of graphene.


The trilobate shape allows the writing object not to slip on the table like other circular section pens and gives an ergonomic grip perfect to be embraced by the three fingers of the hand. With three fingers one holds the pen well and communicate his own message.


CENTO3, are the years from the birth of Achille Castiglioni (1918) to the realization and presentation to the public of the writing project of the two architects Castiglioni and Cavaglià (2021).


Additional information

Dimensions 21 × 5 × 3 cm

Bio-based PLA polymer and graphene


Artisanal assembly, 3D printing


On request


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