A training sword, also known as a practice sword or a sparring sword, is a specialized weapon designed for martial arts training, historical reenactments, or other forms of simulated combat. The purpose of a training sword is to provide a safe and controlled environment for practitioners to learn and refine their techniques without the risk of severe injury associated with using a live blade.

Training swords are typically constructed with safety and durability in mind. They may have the following characteristics:

1. Blunted Blade: Training swords feature a blunted or rounded tip and edges to minimize the risk of cuts and punctures during practice. The blade may be thickened or flattened to reduce the likelihood of accidental injury.
2. Flexible and Shock-Absorbent: Training swords are often designed to have a degree of flexibility and elasticity to absorb impact. This helps reduce the force of strikes and decreases the likelihood of injury to both the practitioners and their training partners.
3. Lightweight Construction: Training swords are generally lighter than their live-blade counterparts. This makes them easier to handle, especially during prolonged training sessions or when practicing complex techniques.
4. Construction Materials: Training swords are commonly made from materials such as foam, plastic, rubber, or other synthetic materials that provide a balance of safety, durability, and flexibility. There are also wooden training swords made from hardwood, such as oak or hickory, which can provide a more realistic weight and feel.

Training swords allow martial artists, students, and enthusiasts to practice techniques, sparring, and drills in a controlled environment. They help develop muscle memory, timing, and accuracy while minimizing the risk of injury. However, it is important to note that even with training swords, proper safety precautions, supervision, and adherence to training guidelines are necessary to ensure a safe training experience.