Derwent - USB Rechargeable Eraser (with Replacements)

Long lasting charge, no need to change batteries.
Suitable for left and right hand use.
Erases quickly and precisely.

Is non abrasive with circular motor movement.
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..