Max Muncy is already a 2x MLB All-Star and 2x World Series Champ - including this season. This is a Max Muncy MM9 pro model bat - PRO BIRCH 34/31.5 - PR20-013. Evidence of excellent use, with a handle crack which has tape around it. The accompanying letter confirms the matches to 5 games late August through early September. During these games, Muncy combined for 7 hits with two home runs. The bat has been matched to the exact at-bats of 5 of these 7 hits, including both home runs 84 / 85. MLB hologram affixed: JD136988.