Really convince. But you should already begin in March, to scatter the first slug pellets. This year we had not a single screw with us. In the neighborhood many snails crawl. And when times but lost a screw in our area, we have plenty of food scattered for them. And then remains only a trail of slime. Of course we are fighting so that only the Spanish slug. And here the effect is really convincing. The 1 kg Pack is divided into four small bags. Even rain holds the slug pellets reasonably stand. We buy it again. And the flowers and plants in our garden rejoice.