Disclaimer: Please ensure the removable cover is clipped in properly on both sides as there is a built in protection feature that prevents the blades from turning if the cover is not secured properly. Multi-function machine- It is a multi-purpose electric pencil sharpener,can fast and easily cut a 6-8 mm and a 9-12 mm diameter pencil,not only can cut pencil but also can cut colored pencils,each pencil is sharpened to a perfect point to ensure ease in writing, coloring, drawing for teachers and students.Safety protection- There is a large hole at the security cover, once the cover is opened, the machine will immediately stop working so kids hands will avoid being scratchedSmart cut pen- As the sharpener is battery operated, it will automatically work after insert your pen, when lifted open it will immediately stop, which different from manual pencil sharpeners time-consuming.Power: 1.5V x 4 pcs AA Batteries not included.Anti-skid function- There is a non-slip mat at the bottom to better prevents movement during work.Durable and Economic- The tool holder can be replaced, can improve product life, you don't need to spend extra money to buy a new sharpener, just need to change the tool holder.