These baseballs have been personally hand-signed by Anthony Rizzo and Kris Bryant. It has been obtained under the auspices of the MLB Authentication Program and can be verified by its numbered hologram at MLB.com. It also comes with an individual numbered, tamper-evident hologram from Fanatics Authentic. This process helps to ensure that the product purchased is authentic and eliminates any possibility of duplication or fraud. The display case features a 1/8"-thick clear acrylic removable lid with an antique mahogany finished base. It measures 9.125" x 6" x 5.125."