Yes, hook swords, also known as twin hooks or shuanggou, are real weapons that originated in China. They are a unique type of weapon consisting of two crescent-shaped blades with a hook protruding from the side near the handle. The blades are typically attached to a handle or hilt, and the weapon is used in pairs.

Hook swords were primarily used in Chinese martial arts and are often associated with styles such as Northern Shaolin, Wushu, and Kung Fu. They are known for their versatility and distinctive design, allowing for various techniques and maneuvers.

The hook on the side of each blade provides additional options for trapping, disarming, or hooking an opponent's weapon, while the blades themselves can be used for slashing, cutting, or striking. The unique shape and design of hook swords make them visually striking and distinguishable from other bladed weapons.

While hook swords have a historical and cultural significance in Chinese martial arts, they are not commonly used as practical weapons in contemporary contexts. However, they continue to be popular for demonstrations, performances, and training purposes within the realm of martial arts.

It's worth noting that the use of weapons, including hook swords, may be subject to legal restrictions in many jurisdictions. Always familiarize yourself with the laws and regulations regarding weapon possession and usage in your specific location.

If you are interested in learning more about hook swords or training with them, it is recommended to seek proper instruction from qualified martial arts instructors who specialize in the associated styles and techniques.