Pokemon 2017 SM#1+ Sun & Moon Series Strengthening Expansion booster box (20 packs). It was only available at the Pokemon Center and a few toy stores in Japan, starting in January, 2017. The box contains 20 booster packs. Each pack contains 5 random holofoil or reverse holofoil cards for a total of 100 holofoil cards (Most are reverse holofoils). This set is different from other sets. ALL CARDS IN THE BOOSTER PACKS ARE HOLOFOILS. The full set contains 51 cards plus 7 SR, 7 HR, 3 UR cards and 5 Energy cards (Total of 73 cards in the set). The series has new Generation 7 characters as well as some of the older Pokemon characters.
Contents: 20 booster packs
Condition: Brand New. Factory Sealed.