If Nolan Arenado is your favorite player on the St. Louis Cardinals, be sure to pick up this autographed Alternate Chrome Rawlings Mini Batting Helmet. Obtained under the auspices of Major League Baseball, it features a hand signed signature from the St. Louis Cardinals star. Additionally, this Fanatics-exclusive collectible comes with an individually numbered, tamper-evident hologram that can be verified online to certify authenticity.