AUSTIN (KXAN) — A group of Girl Scouts gathered to do a service project Saturday. But they weren’t hosting a bake sale or picking up trash on the street. They were making 3D-printed prosthetic limbs for disabled children.

As part of the Helping Hands program, Girls Scouts of Central Texas partnered with Wayside Sci-Tech Preparatory School and EOS North America, an industrial 3D printing company.

Ninth grade engineering students from Wayside Sci-Tech led the girls in building 15 child-sized prosthetic hands using 3D-printers from EOS North America. The girls got to assemble about 30 different pieces that make up the hand to get the full learning experience.

“We can give these girls these experiences at a very young age. Some of these girls are in kindergarten,” said Celia Tellez, chief of programs and community engagement for the Girl Scouts of Texas. “That is when they start to believe in themselves and that they can be an engineer. They can do this — they aren’t afraid of anything, or robots, or engineering concepts.”

Once the hands are completed, the group will donate them to e-Nable, a non-profit that matches 3D-printed prosthetic limbs to people in need of upper-limb devices around the world.

The group says they created this event to teach girls that fields in STEM can allow them to make a positive impact on their community. They say they want girls to learn how to harness cutting-edge concepts and tools for the greater good.