You can push the button by your hand when you want to change the length of blade. Box cutters retractable which can auto fix the blade on any suitable length for safety cutting, not easy to slide.
Stainless Steel blade-sliding-track,Easy to replace blades
Utility knife blade are made of good SK120 carbon steel material can be very sharp
Easy snap-off blade provides many new cutting tips for long time usage.
Unique friendly design for both right hand and left hand to use
