S4 Safety Cutter was designed and developed in response to direct feedback from store employees and safety professionals.   Our S4 Safety Cutter features a shorter,slimmer, more ergonomic handle that is more suited to the average retail employee.  A see-thru body for quick inspection of blade levels an improved blade change release lever and our new shorter, single notch replacement blade.  The single-notch eliminates any possibility of misalignment when loading replacement blades.   S4L is designed for left handed users.