(KTVI) - Sydney Kendall, 13, lost her right arm in a boating accident six years ago. She has a couple of prosthetic arms she uses. One is unique and high-tech. It's called a 3-D robotic arm and it's made out of the same kind of plastic as Legos.
Students at Washington University made the prosthetic arm on a 3-D printer. Kendall can control her shoulder movements with the arm.