Maybe it is not due to the coil, perhaps at the (too) high performance of Gardena powercuttrimmers 450: A replacement bobbin enough with us for a 2-time application! Then the thread itself has handled primarily and is no longer usable. Find then (anywhere) on our lawn about 10 - 15 cm long, unused pieces of thread spool. DESPITE applied according to regulations! Once I get so for a small branch of our hedge, the spool unwinds and is consumed in a very short time. That really can not be, and you are constantly annoyed. Therefore, the coils with more than 7, - too expensive. Because there is also no use in that the delivery and shipping costs are ok.
