This has a non-skid bottom, so your cats can be as aggressive as they want without it slipping under them. It's also a great option for multi-cat households.
Promising review: "Straight out of the box, all five of my cats took to it, RIGHT AWAY! If only I was the genius who would have thought of this product, but I'm ecstatic nonetheless. I have a very timid cat who gets pushed out of everything, as you can see in the group picture (above, left); but later, she got to investigate and played for a good half hour! I can't get her to play with anything alone, so this was huge after seven whole years. I always have to instigate play with her, until this came into our lives today! I am so completely pleased. When she attacks the holes and hears the hook and loop pull, she freaks out and runs circles around it for her next attack. You won't be let down. This is the best entertainment ever, especially for the cat lady and cat dad involved. We hurt from laughing. JUST BUY IT!" —Katie
Get it from Amazon for $44.