A blind man has co-worked with his armless friend on planting over 10,000 tress in northern China.

In the video, the armless man was seen carrying the blind man on his back while crossing a river. Then the armless man held a shovel with his head and shoulder to dig a hole on ground. The blind man kneeled aside and helped dig the hole with his hand when he heard that the armless man stopped.

They’ve started the impossible project in 2001. They are in their 50s now.

He said in the footage that: “We just want to leave stretches of green trees to next generations. We’re physically handicapped but our hears are not.”

According to the blind man, he was born blind in one eye and lost another in 2000. His friend became armless in an accident when he was only 3 years old.

The video was shot in Jingxing county, Hebei province on April 23, 2015.