Ben Tennyson, Ben 10 Wiki

Benjamin Kirby "Ben" Tennyson is the titular main protagonist of Ben 10. He was a normal ten-year-old kid until he found a mysterious alien watch called the Omnitrix, a powerful device that allows him to turn into ten different aliens with a simple touch - each with their own awesome power! Though immature and clumsy, he uses the Omnitrix to stop evil, but that doesn't stop him from using it for his own personal needs. Ben wears a black and green t-shirt with the number 10 on the top left corner

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