This Rawlings Official Major League baseball has been personally hand-signed by NY Mets Super Star 1st Baseman Pete Alonso. He has added the inscription "Polar Bear" as well to make this an even more unique item! This item was signed in the presence of and witnessed by a representative of Major League Baseball and Fanatics. It comes with an individually numbered, tamper evident sticker from BOTH MLB & Fanatics which can be reviewed online to ensure authenticity. This process helps to ensure that the product purchased is authentic and eliminates any possibility of duplication or fraud.