I purchased these for a young puppy who is still working out where is she really supposed to go, and until she fully realizes it is always outside, these work. I didn't find the adhesive too strong. I kinda wish they were stronger/or had a larger area of adhesion to keep them down firmer. They get lifted from their spot more often than I would like (I use them at the back door, sometimes in my office, and at night at the bathroom door entrance next to the baby gate.). They are placed on both hardwood floors and tiles. With that said, the product works well and they must have a smell that attracts them to use them for urinating. I did not need to show her what they were for.