I have been seeing these type toys posted here and everybody has been telling me how much fun they are so I finally found one. But instead of having rolling balls, this one has a stuffed rat (on the right) and Persi and Alley can get this thing going in sync. You talk about fun! They were having so much fun that I put it up after about an hour. That is exactly what my parents would do to me when they got me a new toy. Told me that they did not want me to get too tired of it right away! Just to show you that a poor guy can never win though, DW told me that was a mean thing to get them because they could never actually catch it. And then after an hour, when I took the toy away, DW told me I was being mean because I took it away!