Undergrads build prosthetic arm for 10-year-old violinist

Ten-year-old Isabella Nicola Cabrera smiles after playing her violin with her new prosthetic at the engineering department of George Mason University in Fairfax, Va., Thursday, April 20, 2017. "Oh my gosh, that's so much better," Isabella said as she tried out the new prosthetic. (AP Photo/Steve Helber) (The Associated Press)

A new prosthetic holds a bow as it awaits ten-year-old Isabella Nicola Cabrera at the engineering department of George Mason University in Fairfax, Va., Thursday, April 20, 2017. A group of five students designed a new prosthetic for Isabel to play the violin. (AP Photo/Steve Helber) (The Associated Press)

Ten-year-old Isabella Nicola Cabrera applies rosin to her bow as prepares to play her violin with a new prosthetic at the engineering department of George Mason University in Farifax, Va., Thursday, April 20, 2017. A group of five engineering students designed a new prosthetic for Isabel to use to play the violin. (AP Photo/Steve Helber) (The Associated Press)

A 10-year-old girl born with no left hand is playing the violin, thanks to a specially designed prosthetic built by undergraduates at George Mason University.

Isabella Nicola tested out the final version of her prosthetic Thursday. A team of bioengineering students teamed up with a music instructor to make sure the attachment was comfortable and provided the range of motion for Isabella to move her bow appropriately on the strings.

The attachment was the capstone project for the team of senior bioengineering majors at Mason.

Isabella's music teacher at her elementary school had built a device for her but approached the school to see if they could come up with something better.

At Thursday's session, the team surprised Isabella with an additional attachment that let her ride a bicycle.