Pokemon TCG: Island Guardians Tin (Summer 2017) - Rules of Play says:
Pokémon TCG: Island Guardians Tin Launch: May 19, 2017 Stand ready with the strange and fearsome Pokémon of Alola in each Pokémon TCG: Island Guardians Tin! Choose the electric mischief of Tapu Koko-GX or the relentless vines of Tapu Bulu-GX. Each of these beautiful tins contains all the astonishing power of a strange and mysterious Pokémon-GX who stands as a defender of the land!
In each Pokémon TCG: Island Guardians Tin, you'll find:
- 1 of 2 foil Pokémon-GX cards: Tapu Koko-GX or Tapu Bulu-GX
- 4 Pokémon TCG booster packs
- A code card to unlock a playable deck in the Pokémon Trading Card Game Online