A self-defense baton, also known as an expandable baton or telescopic baton, is a type of less-lethal weapon that is used by law enforcement and security personnel. The baton typically consists of a cylindrical shaft that can be expanded or extended to its full length, which ranges from 16 to 36 inches. The material of self-defense batons can vary, the common materials include steel, aluminum, and composite materials such as fiberglass and carbon fiber. The handle of the baton is usually made from rubber or other materials that provide a comfortable grip and reduce the risk of the baton being taken away. The main advantages of a self-defense baton are that it is relatively easy to use, does not require much training, and can be effective in incapacitating an attacker. It is also a less-lethal weapon, meaning that it is less likely to cause serious injury or death compared to a firearm. However, like any weapon, a self-defense baton should be used with caution, and users should be trained in its proper use and the legal implications of using it.