Description: Cordless, Compact and Lightweight - Offers precise control and ideal for drawing, drafting, architectural plans, arts and crafts, etc. Strong Erasing Capability - Circular movement and strong motor allow you to erase targeted areas effectively and precisely.Electric Eraser Kit. Additional 22 Rubbers refills - φ2.3mm rubber 10 pcs, φ5mm rubber 12 pcs, plastic rubber clip 2 pcs included, long lifetime. Strong Erasing Capability - Push of the button and touch lightly to automatic remove targeted areas effectively and precisely. Battery-powered Eraser - Just need 2 AAA batteries(not included), cordless, compact and lightweight. It offers precise control and ideal for drawing, drafting, architectural plans, arts and crafts, etc. An ideal Christmas gift for kids, adults and professionals. Operation: 1.Press the button and the eraser starts to rotate. 2.Rotate back and forth to erase all the place you don't need. Warning: Avoid placing any parts in your mouth. Package Included: 1 pc Electric Eraser(2* AAA batteries needed, but NOT included, you need to prepare by yourself) 12 pcs Big Eraser Refills(φ5mm) 10 pcs Small Eraser Refills(φ2.3mm) 2 pcs Plastic Rubber Clips