The Westcott 12 inch TrimAir paper trimmer features a durable Titanium Bonded blade, a no-touch safety shield, and EZ change blade technology. 45mm Titanium Bonded blades are 3X harder than stainless steel so they stay sharper, longer. No touch safety shield protects fingers. EZ change blade technology allows one touch blade removal and simple snap on of a new blade. Cuts up to 10 sheets of paper at a time. Ideal for home, office, school, and craft use. Perfect for fast, simple, and accurate cutting or trimming of paper, photos, or film. Works with Westcott TrimAir Titanium Bonded 45mm rotary replacement blade 15263. For cut strip replacement, use Westcott Rotary Paper Trimmer Replacement Cutting Strips, 15269.