A bokken is a wooden training sword used primarily in Japanese martial arts, particularly in kendo and aikido. It is designed to mimic the shape and size of a real sword, allowing practitioners to practice techniques safely without the risk of injury. Bokkens are typically made from hardwood, providing durability and a realistic feel during training. The use of a bokken helps students develop their skills in swordsmanship while emphasizing proper form and technique. It is often used in paired practice, allowing martial artists to engage in drills and sparring without the dangers associated with metal swords.