"Product details of Staedtler Double Hole Tube Sharpener 512006-37
> Two holes for different pencils (see item description for details per sharpener)
> For standard-sized blacklead pencils up to 8.2 mm � with a sharpening angle of 23� for clear and accurate lines
> For standard-sized coloured pencils up to 8.2 mm � with a sharpening angle of 30 � for broad, soft lines
> For thick blacklead and coloured pencils up to 10.2 mm � with a sharpening angle of 30� for broad, soft lines
> Metal sharpener insert
> Hinged cover prevents shavings from spilling
> Lid with safety lock to avoid accidental opening"