Cordless electric erasers by Koh-I-Noor, Milan, Sakura, Alvin. We offer rechargeable and battery operated erasers. These handy, durable electric drafting erasers are designed for easy operation. No more wearing out ends of pencils and looking for an eraser. We also sell replacement eraser refills. Erase quickly and cleanly with these inexpensive, handy cordless erasers.