If you are also looking for a device that will help your cat to be busy while you are at work for example or going on vacation then this is the best solution we have been able to find so far. This technology that allows the cat to be constantly in motion for me to sharpen its instincts and of course there are several kittens this game becomes also group and social and the kittens learn how to contain their emotions while their kittens or siblings play the game.