Assisted Opening Rescue Knife Set Firefighter The Ridge Runner Firefighter Assisted-Open Rescue Folder Set features two assisted-open knives, a large one and a smaller one. Each anodized stainless steel blade rockets open with just a nudge of the thumb stud using the patented assisted-open mechanism. This set is the perfect gift for the hero in your family! Anodized stainless steel blade Handles feature: seat-belt cutters glass breakers and Firefighter shields Large: 4/12" closed, 3" blade and 7 1/2" overall Small: 6" overall, 3 3/4" closed, and 2/12" blade