Ranger 55 Classroom Manual Pencil Sharpener, Manually-Powered, 3.25 X 6 X 5.5, Black Durable and stylish pencil sharpener for high-volume environments. Dual helical cutters sharpen pencils with precision. Easily mounts on wall, desk, or table with included screws. Adjustable to accommodate 8 pencil sizes. Manual operation is easy for school children to use.