Features: Suitable for Tablet PC, Laptop, Desktop computer USB PORT, USB receiver is included FOUR GROUP DPI:400,600,800,100 Battery require: 1 x AAA Image® - is a registered trademark protected by the US Trademark Law. Image® products are sold by authorized sellers only

Sharpener and tub for 2mm leads. Rotary action lead pointer with automatic sharpening stop. Metal sharpener with integrated dust wiper. Has measurement device for adjusting sharpening cone.