Especially recommended for pigmented pins as Polychromos or Very Thins, etc. whose soft mines would break the hand sharpener. Also great for pencils, because a long mine gate is formed which retain sharp when drawing.
Works with batteries or power supply (which is not included), lasts a long time in battery mode!
The only disadvantage (like most e-Spitzer) something unpleasant noise function. So do not be alarmed at the best park in the drawer box under the table and use there. For the purposes of colleagues ...
Have nevertheless become more devices which at various workplaces. Can recommend the part good conscience.
Have fun with it!
