BREAK Evolution Box: Pokemon - Rules of Play says:
BREAK Evolution is the newest way to power up your Pokémon—and the Pokémon TCG: BREAK Evolution Box can help you get started! This box contains not 1 but 3 new Pokémon BREAK, plus a super cool oversize card.
The BREAK Evolution Box includes:
- 3 never-before-seen promo cards featuring Pokémon BREAK
- 1 oversize Pokémon BREAK card
- 5 Pokémon booster packs to expand your collection.