A 3D Systems employee rallied a team of designers to create prosthetic legs for a dog who was born with a congenital deformity.

The touching story about Derby the dog and his 3-D printed legs has been trending on social media, so we just knew we had to share it with you.

Derby “was born with a congenital deformity characterized by small forearms and no front paws,” according to 3D Systems, who made the prosthetics for the dog.

Tara Anderson, a 3D Systems employee, decided to help Derby after fostering him through the dog rescue group Peace and Paws in Hillsborough, New Hampshire. She rallied a team of designers, who created the prosthetics quickly and shipped them off to Derby’s newly adoptive owners Sherri and Dom Portanova.

How did Derby react to the new prosthetics? He took off running and doesn’t seem to want to stop.

“He runs with Sherri and I every day, at least two to three miles,” Dom Portanova told 3D Systems. “When I saw him sprinting like that on his new legs it was just amazing.”

Watch the YouTube video of Derby the dog below.

Top photo courtesy of 3D Systems’ YouTube account

Top photo courtesy of 3D Systems’ YouTube account