Expandable baton (Q13422206)

is typically composed of a cylindrical outer shaft containing telescoping inner shafts (typically 2 or 3, depending on the design) that lock into each other when expanded

collapsible baton
telescopic [or telescoping] baton
tactical baton
spring cosh
ASP
Extendable
extendo [slang]

Language	Label	Description	Also known as
English	Expandable baton	is typically composed of a cylindrical outer shaft containing telescoping inner shafts (typically 2 or 3, depending on the design) that lock into each other when expanded	collapsible baton telescopic [or telescoping] baton tactical baton spring cosh ASP Extendable extendo [slang]