Spring-loaded blade self-retracts when disengaged from cutting surface with lock to prevent accidental exposure. Patented radius-tip blade with three depth settings for various box sizes. Ergonomic squeeze-action trigger for ultimate control. Two edge guides for quick and accurate cuts. Tape splitter for fast tape cuts. Versatile snap-on holster and lanyard system for left- and right-hand users. Built-in storage includes two extra blades.