#738: Birospiral

Pens frequently lose their tops by some magical process. Rather than attach a pen top to the writing end by using a chain or a skein of plastic, today’s invention is a pen in the form of a circular bracelet.

The closure is formed by inserting the ballpoint into the distal end of a tightly wound spring (which accommodates the flexible ink reservoir).

When the bracelet is opened for use, it straightens and allows normal penmanship.

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