The 2021 Panini Mosaic MLB Baseball card pack includes 4 standard-sized cards featuring players like Fernando Tatís Jr., Ronald Acuña Jr., and Mike Trout from teams such as the New York Yankees, Los Angeles Dodgers, and Los Angeles Angels. These sports trading cards are made of card stock and come in English language. The pack may include inserts, rookies, autographs, parallels, and limited edition cards, adding excitement for collectors looking to add unique pieces to their collection. Perfect for fans of Major League Baseball wanting to enhance their card collection with quality products from a reputable manufacturer like Panini. These packs are from a sealed blaster box.