Pokemon TCG: Pikachu & Eevee Poke Ball Collection - Rules of Play says:
Pikachu and Eevee join up in the Pokémon TCG: Pikachu & Eevee Poké Ball Collection! This collection features two all-time-favorite Pokémon in a joyous, beautifully sculpted figure and two new foil promo cards-a great addition to any collection. Plus, the Poké Ball has a secret compartment inside that holds up to 60 Pokémon TCG cards!