The 2021 Onyx Vintage College Football Factory Sealed Hobby Box contains standard-sized trading cards featuring autographed players from the National Football League (NFL). This set, manufactured by Onyx in 2021, is packed with collectible cards made of card stock material. As a sports trading card enthusiast, this box offers a unique opportunity to add to your collection of football memorabilia from the 2020-21 season. Each box is sealed, ensuring the authenticity and rarity of the cards inside.