This authentic lunar eclipse speed helmet has been personally hand-signed by tua tagovailoa, dan marino and bob griese. this helmet commemorates each player throwing for 6 touchdowns in a single game. each player has inscribed this limited edition helmet with the date and team they scored 6 touchdowns on. this helmet is limited to just 22 and you are bidding on number "1" from that edition. it is officially licensed by the national football league and 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.