The product is a 2021 Topps Chrome NPB Nippon Professional Baseball pack featuring rookie card of Yoshinobu Yamamoto. This pack contains 8 standard-sized trading cards from the Nippon Baseball League. Manufactured by Topps, these vintage cards are in Japanese language and are part of the 2021 season set. Each pack offers a chance to collect cards with potential autographs, making it a sought-after item for baseball card enthusiasts and fans of the Nippon Professional Baseball league.