The term "expandable baton" describes what?

The term "expandable baton" refers specifically to a type of baton that can be extended or collapsed for convenience and ease of carry. This type of baton is commonly associated with the brand ASP (Armament Systems and Procedures), which is known for manufacturing high-quality expandable batons. These batons are designed to provide law enforcement and security personnel with a versatile and effective means of self-defense while being compact and easily transportable when not in use.

The design of expandable batons allows officers to quickly deploy them when needed, providing an advantage in readiness and effectiveness during confrontations. This functionality distinguishes them from traditional batons, which are typically solid and do not possess the same expandable feature. Therefore, the connection of the term "expandable baton" to ASP is the most accurate, as they have played a significant role in popularizing this type of design in law enforcement tools.