This quick change box cutter is amazing. Sit back and let me tell you why.  A release is provided on the back of the blade to exchange old blades with ease.  Push down on the lever and out with the old and in with the new but thats not all.  To secure this cutter open there is a lock back mechanism on the spine to ensure your blade never collapses on you.  The handle is constructed of aluminum with a steel pocket clip for transporting your blade with you while working.  Included are 5 steel blades.  They come angled so it is easier for cutting flat surfaces.  All done after a day of hard work just release the lock and the blade folds into the handle.  Work just got a little bit easier. Specifications: Overall Length: 5.88 Inches Overall Width: 1.10 Inch Material: Aluminum, Steel Blades Features: Blade Release Lock Back 5 Free Blades Steel Belt Clip Color: Orange