And the company which has designed it - the Shadow Robot Company - has just been given thousands of pounds for more research into the arm.
Air muscles
The device moves by using air muscles rather than electric motors and the hand and arm are attached to a revolving base.
It already has 24 movements - that's twice as many as the robotic arm currently being designed by the US space agency Nasa.
The arm's movements are controlled with the help of camera systems and a remote control unit, but eventually scientists hope it will perform tasks automatically.
A spokesman for the company said a complete robot assistant could be just two or three years away.
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