the big black ants I had coming in my side bottom garage won't go in these, too small of an opening...so I used the clear tubes for those, and these stopped the real small ones I had coming in as well...also had some small ones bottom of my basement steps at one time, these did those as well....so you really need both if you have large and small ants, these are great for any kind of small ants, inside or out...
I am just trying it out. Whih I had ants inside my motorcycle radio areas. But had not seen any ants. Since I purchase this product. But cannot mention. That product reall affectively is working. I have to give it another week are so?