Injured Chinese farmer Sun Jifa turns his homemade bionic arms into a business to help others just like him that can't afford expensive prosthetic arms.

When a Chinese farmer couldn't afford expensive prosthetic arms, he reportedly created his own functional, bionic arms, which later turned him into an entrepreneur.

New Tang Dynasty (NTD) Television reports that farmer Sun Jifa, in China's northern Jilin province, lost his arms years ago when a fishing explosive prematurely went off. Sun could only afford a low-grade pair of prosthetic arms, but they weren't very useful.

So despite having no instructions, Sun spent eight years building his own steel pair of bionic arms from scratch, NTD Television reported. His story is explained in the video above.

"It transfers power from the natural movement of my elbow into the finger, allowing it to grab and hold," Sun, 53, told NTD Television.

But what's arguably even more remarkable is that Sun then turned his invention into a successful business.

Other amputees soon began requesting their own version of Sun's prosthetics, according to NTD Television. Today, Sun has reportedly sold over 1,000 steel limbs for about US $490 each.

"By using these hands, I can help the family with chores. I can do some farmwork. I'm not useless," he told NTD Television. "I really feel a weight has lifted. I feel I'm not a freeloader. I can be useful."