Features 1、This compact electric eraser can erase small areas on artwork quickly and precisely. 2、Uneasy to destroy paper with strong decontamination. 3、Moderate size suits hands perfectly, portable and comfortable to hold. 4、Adopting internal electric motor which is low noisy and safe. 5、Labor-saving and effective, perfect stationery for art students, teachers and those drawing lovers. Specification Features: This compact electric eraser can erase small areas on artwork quickly and precisely. Strong decontamination, not easy to destroy paper. Moderate size suits hands perfectly, portable and comfortable to hold. Adopting internal electric motor which is low noisy and safe. Labor-saving and effective, perfect stationery for art students, teachers and those drawing lovers. Specification: Condition: 100% brand new Weight: 121g/4.3oz Battery capacity: 600MAH Charge Mode: USB charging Package List: 1 x Electric Eraser 1 x USB Cable 2 x Plastic Clamp of Replacement Refills 16 x Replacement Refills Note: 2. When charging is normal, the signal light is normally blue. When the signal light is not on, it means charging is full.