Who does not equal upset when the first strip not done everything as if by magic, the will look in the user guide or view the images or view the device in more detail. Then he / she notice that you have to press a little the plastic pressure-applying plate and the very sharp cutting teeth emerge. Then zag down next tape. Is fine in your hand, even if it rains and rolls evenly - vorasgesetzt, you have the spring pressure is set correctly. Otherwise it'll work just not. So: not the same rant, only once and then switch eyes and brain - AHA - the part is great!
Kleine additional way: a good tape is the second half of the true roll-off joy. The real of Tesa. eg from rolling, like a good steak is equally tender. The half as expensive cheap tapes, however, show the typical unloved plucking - in noise and rolling speed. Since you do not really save.