This batting helmet has been personally hand-signed by members of the 2018 World Series Champion Boston Red Sox; including: Rafael Devers, Andrew Benintendi, Steve Pearce, Jackie Bradley Jr., Mookie Betts, Craig Kimbrel, Eduardo Nunez, Ryan Brasier, Christian Vazquez, Brock Holt and David Price. It has been obtained under the auspices of the MLB Authentication Program and can be verified by its numbered hologram at MLB.com. It also comes with an individually numbered, tamper-evident hologram from Fanatics Authentic. To ensure authenticity, the hologram can be reviewed online. This process helps to ensure that the product purchased is authentic and eliminates any possibility of duplication or fraud. This is a limited edition of 18.