Collecting autographs is a hobby enjoyed by countless people around the country and baseball fans are among the most enthusiastic collectors. If you are just starting out this amazing ball will provide a great head start as it's an official MLB baseball that has been hand signed by eight Major League players who have hit 500 home runs or more during their career. Signatures include Frank Robinson, Harmon Killebrew, Mike Schmidt, Reggie Jackson, Willie McCovey, Sammy Sosa, Eddie Murray, Mark McGwire and Gary Sheffield. This multi-signed MLB Baseball is guaranteed authentic and includes a Steiner Sports Certificate of Authenticity and an accompanying tamper-evident Steiner Hologram. The Steiner Seal Means It's Real.