This slug trap set will keep slugs and snails out of your crops and flowers in the way of your choice! To prevent nuisance from snails, it is important that you start fighting snails early in the spring. You can use these snail traps in two ways: The non-toxic and Eco-friendly way: Beer, where the smell of yeast attracts the snails and when the snail falls into the beer it will drown, and dissolve after some time, or use the trap filled with slag pellets which will keep dry longer inside the slug trap and are kept out of reach of other animals or of your pet. (Please Note, both ingredients are not included) This slug trap performs best when placed near vegetables and plant borders where the snails are mostly found.