The most popular batons on the market today are collapsible or expandable batons, which extend with great force from internal compression mechanisms. These batons extend to their full length with a forceful flick of the wrist, often releasing with up to 30 pounds of pressure. The extra reach provided by expandable batons can keep a safe distance from a potential attacker. Expandable batons have proven themselves as an effective use-of-force option. Many police departments have switched over to expandable batons from old school night sticks.