ManualPen™: Single piece of metal turned into everlasting pen
A pen machined out of one solid piece of metal without any mechanical part that could ever break. Writes in Zero gravity, Underwater, Upside down. Now available on Kickstarter: https://www.kickstarter.com/projects/1303595549/manualpen-single-piece-of-metal-turned-into-everla?ref=7ils2r
A pen machined out of one solid piece of metal without any mechanical part that could ever break. Writes in Zero gravity, Underwater, Upside down. Now available on Kickstarter: https://www.kickstarter.com/projects/1303595549/manualpen-single-piece-of-metal-turned-into-everla?ref=7ils2r