[Rechargeable Electric Eraser] Built-in high capacity lithium battery, can be used 600 times after charging. Don't spend more money on batteries, meet your long time use of electric eraser needs [Rechargeable Eraser Set]Our motorized eraser includes 2 eraser holders that hold 0.078inch and 0.19inch erasers. Use the larger one to create thick and the smaller one to erase tiny parts like hair. Ideal for artists and professionals. [Comfortable Design]This automatic eraser is ergonomically designed with an anti-stroke design for a better grip and more comfortable to hold. The large switch is very sensitive. Simply the button to remove marks. [Powerful Ability]Our this motorized eraser allows you to effectively and precisely erase the target area. Thick and thin replacement core, of localization and details, meet the needs of writing erasing and drawing erasing at the same time. It produces low noise and is not easy to shake your hand. [Compact and Convenient]Our electric eraser, with one-piece body, is small enough to be stored with a regular pencil, and the length of the exposed core can be adjusted to give you a better erasing experience. (The printed words may be different, but it does not affect the use) Color: Black Material: plastic Package Contents: 1 * Electric Eraser 20 * replacement cores 1 * cleaning brush Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.