This compact battery-operated pencil sharpener has been designed with the demands of the modern user in mind. It is both easy-to-use and very fast - simply perfect. Portable, compact and handy, this sharpener automatically sharpens in seconds when pencil is inserted and safety feature cuts power when tray is removed. For standard (8mm) diameter pencils. Safety Cut-Out. Weight 150g and dimensions 73 x 79 x 68mm. Requires 4 x AA batteries (not included). Each.