Powerful heavy-duty motor with Auto-Reset(TM) to prevent motor overheating Patented SmartStop(R) shuts off motor and lights up to prevent over-sharpening. Anti-Microbial Shield(TM) prevents bacteria build-up. Designed with commercial grade metal construction for increased durability. Extra long blade life for heavy usage in classroom or commercial setting. Manufacturer's 10-year limited warranty. X-ACTO Pencil Sharpeners part of a large selection of office supplies. X-ACTO(R) ProX(R) Electric Pencil Sharpener, Gray is one of many Electric/Battery Operated Pencil Sharpeners available through Office Depot. Made by X-ACTO.