It is a knife with a unique, foldable blade guard, allowing for safe handling. The blade remains secure and firmly in place and does not wobble during use. You can quickly store the knife by pressing the button that unlocks the blade guard. When you open the knife, a magnet holds the blade in place, making it easy to replace. You don't have to disassemble any loose parts and can immediately grab a new blade from the built-in storage compartment, which holds 5 spare blades. The back of the knife is made of reinforced metal for increased resistance to impacts and falls. Includes 1 CarbonMax blade, which lasts 24 times longer than standard blades.