TFDirect Electric Eraser,Electric Eraser Kit with 20pcs Eraser Refills, Battery Operated Eraser for Pencil and Charcoal for Kids School Students Painter Sketch Precision pinpoint erasing, good for artist, draftsman, animators and architects (pencil or charcoal drawing, sketch etc) Easy and Comfortable to Use-Just hold this electric Eraser on the area you would like to erase and press the button to spin the eraser and remove the markers Long Lasting Use-Good quality and comes with extra 20 replacement refills,operated by 2 AAA batteries( Not included) Wide Range Use-Ideal for artists,draftsman, animators and architects, also,nice for those for those who have issues with their hands. Powerful Battery-operated Electric Eraser with 20 Extra Refills for Painting