1. Material: plastic
2. Output speed: 14500rpm/Min
3. Power supply: 2 AA batteries (not included)
4. Packing list: eraser handle x1, thickness conversion head x1, replacement core x20
5. Size: about 17.5cm long

Features:
1. Can accurately wipe the details, suitable for sketches, color pencils, comic designs, etc., wipe clean without leaving traces
2. Two diameter rubber heads, exchangeable according to different situations
3. Low noise and small vibration
4. Battery driven, constant output
5. Small size, easy to carry and store
6. With transparent protective cover, not easy to lose
7. Matte texture, comfortable hand feel, not easy to slip
8. Large button design, comfortable and labor-saving

Specification: