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Air is abundant and all around us. Why can’t we use it as a material for pens? A normal pen contains many parts, the cap the metaillic spring，the external plastic/metallic shell. Why can’t we save on the complex manufacturing of these parts? Air pen reuses the packaging of the pen’s refill as the pen’s external shell and uses air as a materiral for it’s structure.
Zhao Yijun Yu Qian Xu Kan Su Ding