There's no more need to change the batteries in your electric eraser! The new Derwent USB electric eraser erases quickly and precisely. It includes a USB charging lead and 20 erasers refills, (10 large erasers 5mm & 10 extra fine eraser 2.4mm diameter).

The extra fine eraser is perfect for fine hair line erasing for detailed artwork and technical drawing. The function button is designed to push on and off when required, allowing your hand to hold freely for maximum control. Plus, It's suitable for left and right hand use!