Premium Guillotine Cutter-15 1/8"Features Revolutionary guard keeps fingers and arms out of harm's way. Blade is ground from highest quality, German steel to handle paper, card stock, and mat board. Self sharpening blade maintains a perfectly honed edge. Clamp engages automatically to hold materials in place. Innovative spring system holds blade in place, and prevents it from flying up or falling down accidentally. Model 81634 can cut up to 35 sheets, up to 15 1 8" wide. Sturdy base