Where space is at a premium, this compact design desktop pencil sharpener is a great choice. Hardened steel helical cutting blades deliver a clean, sharp point every time. The auto stop feature lets you know when the pencil is sharpened, thus preserving pencil life. The thermal overload shut off prevents motor damage and resets once the motor has sufficiently cooled. If the receptacle tray is removed, a built in safety feature stops the motor. Global Product Type Pencil Crayon Sharpeners Sharpener Type Desktop Power Type Electric Cutter Material Hardened Steel.