Metacarpal creates bionic hand prosthetics entirely powered by body movement. Using the body’s motion makes Metacarpal devices more intuitive and functional than battery-powered competitors. Despite the clear functional advantages, and popularity of body-powered technology, it has long been ignored by development in favour of robotic hands. Metacarpal brings a series of innovations to update and upgrade this user-loved technology with new functionality and a device users can be proud to wear giving greater independent living and confidence.