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Warming gel ink pen / pen

Warming gel ink pen
Warming gel ink pen

The warming gel ink pen contains a heating system and a hollow refiltubes made up of metal. The chargeable battery could help to heat the water if it got cold. The warming gel ink pen could keep the hand out of the cold environment.

University

Beihang University

Beihang University
Beijing, China

University

Beihang University

Beihang University
Beijing, China

Design

Beihang University

Beihang University
Beijing, China