When we moved in to the house we live in now, there were no rats seen, or cockroaches. After some time, I noticed some cockroaches passed by our kitchen and bathroom, small cockroaches though. Sometimes I just sprayed them with the insect demolisher spray, but they still kept coming. Then on one shopping day, I found this product, Naphthalene Disk Ball made by Dahlia. It’s actually meant for anti-moth, to be put inside the wardrobe to protect our clothes from moth. Well, I wanted to try it for keeping the small cockroaches go away, and so I bought it. Then I put some of it under the kitchen cabinets and bathroom floor. And in a matter of days I noticed that the cockroaches didn’t appear. So it worked! :) I also put some inside our shoes and wardrobe for keeping the shoes and clothes free from moth. It didn’t have any aroma so it doesn’t leave any kind of scent to our clothes and shoes, which is a good thing. I always buy two or three packs of it at once. Great product indeed.