The Victorinox Rescue Knife is patterned from the world famous Victorinox Parachut Knife. Designed to be thin, light, and easy to use this single-blade knife is ideal for all EMS and Safety personnel. With a single 4" curved serrated blade, the large thumb hole allows for quick opening in an emergency. The locking mechanism ensures the blade stays in place when using it to cut seat belts, clothing, or anything else.