The Upper Deck 2021 Skybox Metal Universe Champions Hobby Box is a sealed box containing 105 standard-sized trading cards featuring players from the National Basketball Association (NBA). Manufactured by Upper Deck, this box is part of the 2021 Skybox Metal Universe Champions set, made of card stock and in English language. Perfect for basketball enthusiasts looking to add to their sports trading card collection, this hobby box offers a variety of cards from the current season.