This is an Official Black M.L.B Baseball that has been hand signed by Fernando Tatis Jr. This item was inscribed "M.L.B Debut 3/28/2019." Please note, the pen isn't fully dry on these black M.L.B baseballs and the signature can still smear if the baseball isn't properly handled. This item has been certified authentic by JSA and comes with their tamper-proof sticker and matching certificate of authenticity.