Spalding Official NBA game ball basketball. Hand-signed in silver paint pen by Luka Doncic (Dallas Mavericks). This authentic basketball has been personally hand-signed by Luka Doncic. It is officially licensed by the National Basketball Association and comes with an individually numbered tamper-evident hologram from Fanatics Authentic. To ensure authenticity, the hologram can be reviewed online. This process helps to ensure that the product purchased is authentic and eliminates any possibility of duplication or fraud. Made in the USA. Personally Autographed by Luka Doncic. Fanatics Authentic Presented by Mounted Memories. Includes tamper-evident hologram to ensure authenticity. Officially licensed. This product is guaranteed authentic and includes a Fanatics Certificate of Authenticity and an accompanying tamper-evident Fanatics Hologram.