The 2021 Skybox Metal Universe Champions Sealed HOBBY Pack features basketball trading cards from the National Basketball Association (NBA). This pack includes 7 standard-sized cards made of metal, with the possibility of containing an autographed Michael Jordan card. As a collectors' edition with a chase element, this pack is a sought-after item for fans and collectors alike. Manufactured by SkyBox in the United States, these cards offer a unique and valuable addition to any sports memorabilia collection.