My kitties love the laser. I read on the package to never shine it in their eyes so I never do that. The first one I had had a chain on it and after they knew the sound all I had to do was pick it up and 3 cats would come running. Now if I want to play with just one I am very quiet about it but they all sense somehow when it is being used and still come running. Very fun game and good exercise for the kitties running around trying to catch it.