Komplekts Playmates Toys Ben 10 Ben Tennyson & Grey Matter

Ten-year-old Ben Tennyson finds an alien watch, the Omnitrix, which allows him to transform into 10 different aliens! He uses the power to help others and stop the bad guys—but Ben's not above a little super-powered mischief now and then.

Grey Matter is the Omnitrix's DNA sample of a Galvan from the planet Galvan Prime. Small in stature but huge in intellect, this slimy little alien is stronger than he looks and proves that sometimes brains really do beat brawn