The product is a 10x One Piece TCG English OP-12 Legacy of the Master Loose Booster Pack containing 12 cards each. The cards are standard size and in English language, manufactured by Bandai in Japan. These booster packs are part of the Legacy of the Master set and are designed for ages 6 and up. Perfect for collectors and players of the One Piece CCG, these packs offer a chance to expand your card collection with cards from the popular series.