STAEDTLER Mars Rotary Sharpeners (Set of 1, Blue, Black)

Stedtler mars 501 20 is ideal for all round, triangular and hexagonal blacklead and coloured pencils upto diameter of 12mm. There are various adjustment posibilities for sharpening cone- long and sharp ideal for cear and accurate lines or short and blunt ideal for broad and soft lines. Inside there is metal rotary blade with automatic sharpening stop function. It can also be attached to a desk with the desk clamp.