I bought this product for my 3-month-old kitten. They were easy to apply (I glued them on while she was napping) and she didn't even notice they were there when she woke up. They were very effective for preventing scratching. HOWEVER, we have many rugs with looped carpeting and she gets her nail caps caught in the loops several times every day. I was only able to work her claw out two times.....the other 20+ times I have had to cut the yarn in the rug to get her out. Just a few minutes ago she got caught (for the second time in less than one minute) and she started rolling around and got her arm twisted behind her in a way that makes me wonder how she may have injured herself had I not been right there to help her. Now I worry every time I have to leave her alone because I'm afraid she will hurt herself. I can't get the caps off (I tried nail polish remover).