Self-sharpening stainless steel blade and a multitude of safety features makes this trimmer a cut above. Features a patented automatic blade latch that locks with every cutting motion. Finger guard protects the entire length of the blade. Torsion spring prevents blade from accidentally falling. Clamp securely holds stacks for accurate cutting without shifting or tearing. Permanent 1/2'' grid and dual standard and metric rulers help ensure proper alignment. Medium-duty 1/2'' thick wood base. Nonskid rubber feet provide added stability.