With the help of his students, a Chinese Kung Fu master has shown off his "ball-breaking stamina", by being repeatedly hit in the crotch.
Master Wei Yaobin is known in China as the 'Iron Crotch Kung Fu' master.
He trains students in how to take blows to the crotch.
In the video, he and his students subject themselves to kicks, battering rams, and bricks to their most sensitive area.
Master Wei says he wants to make his martial arts style more "popular and accepted by the public".
He says the practise helps overcome erectile dysfunction and premature ejaculation.
However it is unknown how many men have been inspired to join him.