Each Kamigawa: Neon Dynasty Collector Booster contains 15 cards.
Collector Boosters are turbocharged booster packs loaded with delicacies for collectors and anyone who wants to style out their deck.
Rare/mythic rare with extended art
Foil rare/mythic rare
9 foil commons/uncommons
3 special frame cards (borderless planeswalkers or "showcase" cards)
Collector Booster Boxes contains 12 Collector Booster Packs.