1、EFFICIENT ELECTRIC ERASING: The rotating design of this eraser makes erasing easier and improves efficiency, giving your sketchwork a clearer finish. 2、PRECISE STAIN REMOVAL: Specifically designed for sketching, it effortlessly removes graphite and colored pencil stains, ensuring your sketchwork looks cleaning. 3、ENHANCE DETAILING: The design of the eraser helps you create more intricate drawing and sketching details, making your artwork more vibrant and lifelike. 4、COMFORTABLE GRIP: It is ergonomic design, making it easier to use and enhancing the pleasure of your drawing experience. 5、PLASTIC MATERIAL: Made with excellent quality materials, it is built to withstand long term use without deformation or easy breakage, ensuring your artistic journey lasts longer. Item Type: Electric EraserMaterial: PlasticBattery: 2 x 1.5V AAA Battery (Not Included)