"My vet recommended this teenie little comb when my dad's long-haired maine-coon had fleas so that we could remove the debris, and we decided to test it out. It's so effective that I now use it to check for fleas on my black short-hair kitty. Be prepared to be grossed out if your pet does have fleas though: there's no ignoring the dead fleas, waste, and eggs once you've done a once-over with this little comb."