The Transformers: Generations Power Of The Primes Prime Master figures are 1.5-inch-scale figures that hide inside the included decoy armor (aka Pretender). The Prime Master robot can convert into spark mode and attach to a Power of the Primes Deluxe, Voyager, or Leader Class figure (Not included. each sold separately). The Autobots and Decepticons use Prime Masters to wield the incredible powers of the legendary bots who shaped the universe: the Primes. How will the Autobots and Decepticons use this power-link ability? Anything is possible and everything is at stake when the Power of the Primes is unleashed! Collect Cloudburs, Skullgrin, and Metalhawk.