Of all the toys we have, the plastic tunnel is always the top-rated one. Keda and Baby were skeptical towards it when I brought it home (I got it as a gift from the pet food store near my place). But after a bit of warming up they are crazy about it. Now all three of my cats “walk” and “run” through it every day. They like to chase each other in and out of the tunnel. Sometimes they even sleep in the tunnel, like what Baby’s doing now. It never ceases to amaze me how simple things always make my cats happy.