As soon as Duan Yun's words fell, everyone present was in an uproar.

There are two types of boxing sandbags commonly found on the market, one made of thickened canvas and the other made of artificial leather.

Normally, if the fighter is wearing gloves, there is basically no difference between hitting the two types of punching bags, but if it is a bare hand, it is a different matter entirely.

If you are an untrained novice, the surface of the canvas sandbag is rough and it will hurt if you hit it repeatedly, while the faux leather one will be better.

However, the members of the martial arts club of Yinghao Middle School are basically recruited by martial arts special recruits, most of them have practiced martial arts since childhood, and their fists have already been sharpened out of thick cocoons, so the boxing club has always used thick canvas sandbags.

Compared with artificial leather, thickened canvas sandbags are tougher and more durable, and even high-frequency striking training in the boxing gym can be used for a year or two without any problems.

As for wanting to penetrate this new sandbag with bare hands, in the eyes of the boxing club members present, it was almost a fantasy!

Although Duan Yun had defeated the strongest elites of the three societies in a 1V10 competition before, this was completely different from breaking through the sandbag, you must know that with the tenacity of this thick canvas sandbag, even if you use a hammer to smash it, it will be difficult to break it!

"Brother Duan......" Taishan, who was standing aside at this time, was also at a loss, and only heard him continue: "This...... Forget it.

"Willing to lose the bet! You don't think a fart when a president speaks, right?" Seeing Duan Yun staring at the canvas sandbag with a somewhat sluggish expression, Nie Zheng said loudly on the side.

Duan Yun didn't pay attention to Nie Zheng, but walked in front of the sandbag and gently stroked the lines on the sandbag with his hand.

The parts of the sandbag that have been repeatedly hit are somewhat white, and it is obviously the weakest point of the entire sandbag.

But even so, if the fist hits, most of the force will still be absorbed by the sand filled inside, which is the reason why the sandbag is not easy to break.

And if you want to break through the sandbag, the best thing to do is to concentrate all the force on a small point, as if you were pierced by a sharp knife.

After observing for a while, Duan Yun took off the clothes on his body, revealing his strong upper body muscles, and simply warmed up.

At this moment, everyone present gathered around and stared closely at Duan Yun's every move.

Suddenly, after Duan Yun took a few steps back, he suddenly kicked his right foot to the ground, swung out his fist, and his body flew out like a disemboweled.

Seeing Duan Yun's movements so fierce, everyone present was shocked, if Duan Yun didn't hit the sandbag but them, with such a fast speed, these people couldn't dodge it at all.

"Bang!" The moment Duan Yun's fist hit the sandbag, there was a loud muffled sound, and the sandbag that was more than a few hundred catties flew out of nearly ninety degrees in an instant, and the chain tied to the sandbag was also ripped and clicked.

"Drink!"

Seeing this scene, everyone present suddenly gasped in unison.

You must know that the people in the boxing club often use this sandbag, and the weight of the sandbag is almost equal to the weight of two adults, even if the fist is the most powerful, Taishan, if he punches it with all his might, he can only make this sandbag shake violently twice, and it will definitely not fly directly like Duan Yun!

It is conceivable that if Duan Yun's punch hits a person's body, it will definitely fly farther than a sandbag, and if it falls, it will either be dead or disabled!

However, after Nie Zheng, who was standing in the crowd, glanced at the sandbag that was still shaking, the corners of his mouth hooked up a touch, and said to Duan Yun: "This sandbag is still not broken......

Hearing this, Duan Yun turned his head and smiled at Nie Zheng and said, "That was just a warm-up just now, and I haven't officially started yet." ”

"Save some effort, you can't break that sandbag at all, you have to be trustworthy, the brothers heard your words just now......" Nie Zheng said with a sneer.

"I still need you to teach me to be a man?" Duan Yun glanced at Nie Zheng with disdain, and then said, "You better prepare the application for resignation first!"

"When do I see your mouth being hard?" Nie Zheng replied, a flash of pride in his eyes.

At this moment, Duan Yun's body took a few steps back, and his fists crackled again.

However, this time, the other members present looked at Duan Yun with a little schadenfreude in their eyes.

Everyone could see that although Duan Yun could throw an astonishing punch, this thick canvas sandbag was too tough to be pierced!

"Huh~~" Duan Yun took a deep breath, and his body took a few steps back again.

"Drink!" Suddenly, Duan Yun let out a roar, kicked the ground under his feet, and rushed towards the sandbag again as fast as a shadow.

At the same time, the moment Duan Yun's fist hit the sandbag, his five fingers were flattened, turned into a knife, and slammed into the sandbag!

This move was almost the same as the one he had used to kill the Cold-Faced Buddha in the underground ring of Ouyang City.

It's just that compared to the beginning, now that Duan Yun has upgraded his rock climbing technique to the intermediate level, the strength of his five fingers has improved more than a notch, and after this week's training, his strength and lethality have also been greatly improved!

"Poof!" At the moment when Duan Yun's hand knife hit the sandbag, the powerful force was concentrated on the fingertip, like a real sharp blade, instantly piercing the originally tough and thick canvas!

And because of the great force of Duan Yun's impact, the residual momentum after the hand knife poked into the sandbag did not disappear until Duan Yun inserted half of his arm, and then stopped!

Seeing this scene, all the members of the three societies present were stunned, and their mouths grew to the maximum, like a dry well!

"Goo......" Nie Zheng swallowed hard after seeing Duan Yun's half arm penetrate the sandbag, and a drop of cold sweat quietly slipped from the top of his head.

Nie Zheng is also a real practitioner, and he can naturally see the power of Duan Yun's striking knife.

The strength of canvas sandbags is far stronger than that of the human body.

In his opinion, with the tenacity of Duan Yun's fingers and the strength of the blow just now, if Duan Yun's hand knife was poked on a person's body, even if he was wearing clothes, he would definitely be able to poke a big hole in the person's body! With such terrifying lethality with his bare hands, this was simply unimaginable to ordinary people!

If Nie Zheng and Duan Yun really had a direct conflict right now, as long as Duan Yun used half of his strength, he would most likely be either dead or disabled!

When Duan Yun pulled his arm out of the sandbag, there was a burst of applause around him, and all the members of the boxing club slapped desperately, obviously completely impressed by Duan Yun's trick!

"Nie Zheng, you can leave the boxing club now, remember to go back and hand over the withdrawal application to me, I will approve it as soon as possible!" After Duan Yun said a word to Nie Zheng, he turned his head and said to Taishan, who was standing behind him who was completely stupid:

"Remember to write a few canvas sandbags on the consumables purchase list......"