A very cool curved mechanical arm that can be used to represent mechanical technology, robotics or high technology. It can also refer to a prosthetic arm needed by someone who has lost their arm. A metal arm can be very stiff, and you can also use this expression to imply that someone moves or does things in a very rigid way, like a robot. This expression has no visible muscles on the arm, and you can use it to describe people who are thin and weak.
U+1F9BE
? Mechanical arm