Feature: 1. Strong Erasing Capability: This electric eraser is equipped with strong motor which allows you to erase targeted areas effectively and precisely, and no damage to paper thanks to small oscillation. 2. 20 Eraser Refills: This electric pencil eraser comes with 10pcs 2.3mm eraser refills, 10pcs 5mm eraser refills and 2 eraser holder, meeting your different needs and extending the service life. 3. Battery Powered: This automatic pencil eraser is powered by 2 pieces of AAA batteries(battery not included). This eraser can erase small areas on artwork quickly and accurately. 4. Comfortable Handle: This battery operated eraser features proper size and comfortable handle, providing steady control and excellent comfort, allowing you to erase and refine marks with light pressure. 5. Wide Application: This automatic eraser is suitable for office, school, travel, studio and more, ideal for professional and amateur artists of all ages as well as students. Specification: Item Type: Electric Eraser Material: ABS Uses: Suitable for Graphite, Colored and Pastel Pencils, Ideal for Small Areas and Detailed Work, Ideal for Painting, Drawing, Planar Graph, Arts And Crafts, etc Battery Model: 1.5V AAA Battery x 2(Battery Not Included). Package List: 1 x Electric Eraser(With 1 x 5mm Eraser)1 x Accessory(Box)