Pokemon TCG: Charizard-GX Premium Collection - Rules of Play says:
Each Charizard GX Premium Collection includes a Charizard GX, a foil Charmeleon, a foil Charmander, a Oversized Charizard GX, a Charizard collector's pin, a Charizard coin, 6x Pokemon Trading Card Game Booster Packs, and a TCGO code card to unlock the promos cards.