The Wubbuloscope is a telescope that helps the Cat in the Hat look into the Wubbulous World when ever there's a story to be told. He cranks a little crack that extends the scope out a little longer for him to see whatever is going on. He uses it whenever he has to look into the Kingdom of Didd, the Jungle of Nool and Seussville. There's also a map that he uses whenever he uses the Wubbuloscope.