Pokemon TCG: Sun & Moon 10 Unbroken Bonds Elite Trainer Box - Rules of Play says:

Pokémon TCG: Sun & Moon—Unbroken Bonds Elite Trainer Box Launch: 03 May 2019 Get a solid hold on your Pokémon TCG game with the Pokémon TCG: Sun & Moon—Unbroken Bonds Elite Trainer Box! The collection is packed with everything a Trainer needs to compete, including card sleeves, high-quality dice and damage counters, and much more. It also includes eight Pokémon TCG: Sun & Moon—Unbroken Bonds booster packs to help put you on the path to victory.