Acme Battery Pencil Sharpener,3-1/4"X3-1/4"X5-1/4",Silver/Yellow Battery-powered pencil sharpener features an auto sensor so once the pencil is at the perfect point the iPoint cuts off, making sure you get the best result every time. Westcott's Titanium technology keeps the blades sharper longer. EZ View shavings reservoir makes it easy to see when your iPoint needs emptying. Pencil sharpener requires four AA batteries (sold separately).