1. Made from plastic, and very convenient.2. This compact electric eraser can erase small areas on artwork quickly and precisely.3. Moderate size suits hands perfectly, portable and comfortable to hold.4. Labor-saving and effective, stationery for art students, teachers and those drawing lovers.5. Adopting internal electric motor which is low noisy and .Specification:Features:Made from plastic, and very convenient. This compact electric eraser can erase small areas on artwork quickly and precisely. Moderate size suits hands perfectly, portable and comfortable to hold. Labor-saving and effective, stationery for art students, teachers and those drawing lovers. Adopting internal electric motor which is low noisy and .Specification:Material: PlasticWeight: 63g/2.2ozLength: 12.5cm/4.9inchBattery Model: AAA Batteries*2 (Not included)Package List:1 x Electric Eraser (Battery Not Included)10 x Eraser RefillsNote:1. Please allow 1-3cm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.