Mooto Korea Taekwondo Re Breakable Plastic Brick 1 EA MMA Martial Arts Hapkido Karate Kickboxing Gym School Academy Demonstration Team Punching

I bought the red, for light material, should be heavier for a better feel in punch. But i like the stone model.

I ordered one of each brick.I received them faster than I expected considering they were shipped from Korea to Norway.The package and products were fine.I started testing them and for now, I'm not able to break the Blue and Red bricks.The Yellow was ok to break with hand knife technique and elbow.However, when I broke it with the elbow, the side of one of the brick halves popped out.I thought the brick was damaged but I was able to just re-insert the side "plate" into place and it has not popped out again.This lead me to see that the bricks are actually hollow inside. I guess the different inner structure creates the different difficulty of each brick.So, if it wasn't for that (side popping out), they would get 5 stars. For the price, this was definitely worth it for me.