Alperen Sengun Autographed Official NBA Wilson Basketball - Tristar *Silver This is a hand autograph of Alperen Sengun on an Official NBA Wilson Game Ball Series Basketball. This item has a Tristar Authentication, which comes with a Tristar numbered sticker hologram and a QR code for verification. It was signed either at a public autograph appearance or a private signing. This is a stock photo of the item. Although you may not receive this exact item, the item you receive is virtually identical and brand new in great shape.