I wanted to sew more unusual shapes patterned on self-made clothes but with the scissors in his hand reach me particularly uniformly round shapes never. Then I had similarly tried it with this flexible ruler and a cloth cutting knife a carpet cutter. Since the spline very well located on a smooth table on the cloth there was therefore always clean cutting edges, which of course was also the knife used, very sharp, and the cut material could be further processed very well when the edges were previously sewn separately, so they do not fray. And on paper, the whole works, of course, very good, to the delight of children also!