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. 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) 1 x Electric Eraser(With 1 x 5mm Eraser) 1 x Accessory(Box)