The in-between haircut solution revolution! With TrueGuard Blade Technology. How Does TrueGuard Technology Work? Unlike conventional clipper and trimmer blades, the innovative TrueGuard blades feature a new design to allow gradual cutting and trimming. Because you simply comb through your hair until enough is cut, it's virtually impossible to make a mistake! Cuts without streaks, gashes, or cut line. Gradually evens, shaped and trims while maintaining your hair style. Perfect for trimming stray hairs, reducing fullness and blending lengths. Use as often as needed to maintain that just-cut look for months. Sleek ergonomic design fits comfortably in the hand for easy maneuverability.