This is a Louisville Slugger Genuine Hank Aaron bat that has been signed by 12 members of the exclusive 500 Home Run Club. The signatures all appear in blue sharpie and include Mickey Mantle, Ted Williams, Eddie Mathews, Reggie Jackson, Willie Mays, Frank Robinson, Mike Schmidt, Ernie Banks, Harmon Killebrew, Willie McCovey, Eddie Murray and Hank Aaron himself. Overall, the signatures grade 8/9.