Wheeljack, who appears in "Transformers/ONE," is here with Cog Power Change! By attaching and activating the Cog on his chest in robot mode, he instantly transforms into vehicle mode! You can play with it, imagining the scene in the movie where the Transformers use Cogs to transform! Furthermore, it easily transforms from vehicle mode to robot mode in one action, making it a product you'll want to play with again and again.