Elevate your collection of Detroit Lions memorabilia with this Jahmyr Gibbs and David Montgomery autographed Riddell Speed Authentic Helmet. It features eye-catching team details and distinct signatures from the star running back duo. They add "Sonic" and "Knuckles" inscriptions to highlight their already-iconic nicknames. This limited-edition collectible includes an individually numbered, tamper-evident hologram that can be verified online to certify authenticity.