An ambulance with only EMTs is considered a Basic Life Support (BLS) unit, an ambulance utilizing AEMTs is dubbed an Intermediate Life Support (ILS), or Limited Advanced Life Support (LALS) unit, and an ambulance with Paramedics is dubbed an Advanced Life Support (ALS) unit.  The Life Support EMT Emergency Spring Assist Knife with glass breaker may just be someones life support lets say maybe at the scene of an accident.  A knife is a must have when dealing with crisis situations.  There may be clothing that needs to be cut off or perhaps bandages cut. This is just a few examples while this tool would be handy to have around and speaking of around with the steel pocket clip you can keep it around right in your pocket. This knife is solidly built with double walled steel frame adds to the durability and integrity of the knife.   The handle is constructed of zinc aluminum with a decorative metallic orange plate and EMT emblem set into the handle.  This blade features a modified tanto with a partial serration giving you a few different cutting edges. The black stone finish protects the blade from rusting and to reduce glare. To deploy the blade you have your choice of a thumb stud or flicker. Specifications: Overall Length:  8.75 Inches Blade Length: 4 Inches Blade Width: 1 Inch Blade Thickness: 2.25 mm Blade Finish: Black Stone Finish Blade Type: Modified Tanto, Partial Serration, Thumb Stud Handle Length: 4.75 Inches Handle Material: Zinc Aluminum, Double Walled Lock Type: Liner Lock Includes: Belt Clip, Glass Breaker Design: EMT