The Westcott iPoint ClassAct pencil sharpener features proprietary titanium bonded blade technology and antimicrobial protection | The sharpener is infused with antimicrobial protection to inhibit the growth of bacterial odors | Titanium bonded dual helical blades stay sharper longer and the EzView shavings reservoir and multi pencil size dial makes it easy to fit most pencil sizes | Mounts securely using the clamping system or screws provided