Inspire Battery Pencil Sharpener, 3 5/8 x 5 3/4 x 5 7/8, Black/Silver, Sold as 1 Each Compact, battery-operated pencil sharpener. Compact, sleek design fits easily in backpacks or desk drawers. Hardened steel razor blade delivers precision sharpening. Requires four AA batteries (sold separately). SafeStart? protection prevents sharpener from working until shavings receptacle is in place.