There is a test that must be very careful when purchasing this product: the size of your pet's claws. I think it is perfect for a cat or a small dog (size equivalent to a cat) for a dog but a little larger or medium the product is not strong enough and could break. This is what happened to me and that's why I did put it 3 stars in the sense that I was not satisfied with this purchase that I have returned. By against the return and the refund will be gone very well, the seller is professional and will not tune out any claims.