A bokken is a wooden training sword used in various Japanese martial arts, particularly in kendo, aikido, and kenjutsu. It is designed to simulate a real sword while ensuring safety during practice. Bokkens are typically made from hardwood and come in various lengths, resembling the size and shape of a katana. Practicing with a bokken allows martial artists to develop their techniques, timing, and precision without the risks associated with using a live blade. The use of a bokken is essential for beginners and advanced practitioners alike, as it helps build muscle memory and understanding of swordsmanship principles.