The Panini Mosaic product line has quickly become one of the most collected basketball and football card sets since it broke away from the Prizm set in 2020, and now it is making its diamond debut with 2021 Panini Mosaic Baseball. This is an MLBPA set, meaning that it does not feature any trademarks or logos of Major League Baseball as Panini does not hold the MLB license. In addition to the base set, 2021 Panini Mosaic Baseball will host a variety of hits including Stained Glass inserts, Autographs Mosaics and Rookie Autographs Mosaic, plus more. The 2021 Panini Mosaic Baseball Hobby Box is loaded up with 15 cards per pack, and ten packs per box. You will typically find three autographs, two Mosaic Red Parallels, and five Silver Prizm parallels in each box. The 2021 Panini Mosaic Baseball Hobby Box was released on October 20th, 2021.