Electric Eraser Kit: Comes with 42 large and 50 small refills for extended use. One-Touch Operation: Remove marks with the simple push of a button. Dual Eraser Design: Includes 2 eraser holders for both φ2.3mm and φ5mm erasers. Use the larger size for broad highlights and the smaller size for erasing fine details like hair. Ideal for artists and professionals. Comfortable Grip: The ergonomic round design provides a comfortable and secure hold. Powerful Erasing: Circular movement and a powerful motor allow for efficient and precise erasing. Battery-Powered: Powered by 2 AAA batteries (not included), freeing your hands for drawing and painting. Perfect for artists, students, teachers, kids, and adults – easy to use! How to Insert Batteries: 1. Press the battery cover by pushing on the arrow. 2. Insert 2 AAA batteries according to the positive and negative markings. 3. Close the battery cover. How to Operate: 1. Press the button to start the eraser rotating. 2. Rotate back and forth to remove unwanted marks. How to Replace the Eraser: 1. When the eraser runs out, pull out the eraser holder. 2. Then pull out about 3mm of the eraser. 3. Return to the original position for reuse. Package Includes: 1 x Electric Eraser 42 x 5mm Eraser Refills 50 x 2.3mm Eraser Refills Specification: Material: Plastic Color: Black Weight: 80 grams Size: 223 x 96 x 18 mm Warning: 1. Avoid putting parts in your mouth. 2. Powered by 2 AAA batteries (not included). 3. For long-term storage, remove the batteries when not in use. Enjoy precise and effortless erasing with this electric eraser kit!