Already the first sharpener was not working. It was a gift for my son who is studying the design and must frequently characterized with well sharpened pencils. Almost at every sharpening operation the tip broke off. Even if you put the pen in different ways and at different pressures in the Spitzer. The complaint was made, however, prompt and uncomplicated (++). But the new Spitzer does not work properly and my son will want to exchange him again. We will give back to Spitzer, and then would like to fall back on another product (more expensive and with power). I hope that this is possible when exchanging or complaint. Both sharpeners we felt as if the Spitzer Been used. There were smallest pieces of wood to the roller. I want, however, not be said, because it may be that the sharpener is checked before delivery in quality control by was tipped again. Can not really recommend this sharpener.