These are great for ponds, fountains, even empty vessels and pots because you can break off pieces very easily. I wish this item was promoted more for areas with mosquitos, because it really works. We don't have a lot in our area, but certain properties nearby seem to have an issue. I haven't had but one mosquito since I started using these in our several ponds and fountains. Also, mosquito fish do a brillant job if you have the space in your pond for them.
Rating:
[5 of 5 Stars!]