Auto Sharpening: After inserting the electric pencil sharpener, it will start working when the pencil is squeezed and automatically stop working when the pencil is taken out. Child Protection: Safety lock function, once the transparent cover is opened, the machine will automatically stop rotating. Children under 7 must be supervised by an adult. Ensure that children cannot insert their fingers by mistake. Compact and portable: its practical size (122 x 58 x 78 mm) makes it easy to store in a child's backpack. child. It is lightweight and suitable for pencil users such as children, students, teachers, designers, etc. Easy to clean: a transparent container for pencil shavings, just remove the lid of the container and you can easily clean it with a small brush or a dry cloth. Package contents: 1 electric pencil sharpener without battery; Guarantee: 7x24 customer service, if you have any questions, please do not hesitate to contact us.