In the picture, we can see three DVDs with images of Chinese martial arts.
These DVDs may be created for teaching Chinese martial arts, which is an ancient traditional sport that combines various techniques such as boxing, swordplay, knife fighting, and spear fighting.
By learning Chinese martial arts, people can exercise their bodies, improve their self-defense skills, and cultivate their willpower and perseverance.
These DVDs may be made to help more people understand and learn Chinese martial arts.