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Neutral pen writing feel comfortable, so people love using them. Aiming to the problems found in daily life, this pen improves and innovates.
•Design inspiration comes from the spring. Spring is elastic. And it can restore the original shape in a certain range.
•When the pen refill into the open, out of refill recovered to contraction. It can save a certain space.
•Combined with ergonomics, it mainly takes the pen by point processing, reinforcement, to encourage users to develop good pen holding posture.
Nanjing Tech University