Both ingenious and perhaps the silliest thing you’ve seen all day.

Research shows that cats kept inside can become bored and develop psychological problems. Without the freedom to hunt, they need other outlets for their pent up energy.

Check out the new cat exercise wheel at Pets Lifeline of Sonoma. It arrived a week ago and has been a big hit, says Nancy King, executive director.

“We have a wishlist on Amazon and we placed the item on it and within a day, Kate Olbrantz, a kind supporter of the shelter, had purchased it,” said King. “Using the wheel in the video is Kamala Harris, one of the most energetic kittens we’ve ever had. She was the perfect cat to try it out and she loves it.”