My 5.5 yrnold dog is using them. I use up to 3 of the 6 I bought at a time (2-3 pees on each) the. Wash the 3 while using the other 3. This does cause more laundry than I normally use and it will increase my water bill most likely. But at least I don’t have to keep buying the disposable pads she use to use. I will use those though for travel or at the dog sitters.