The 2026 Topps Chrome Marvel Disco #129 KNULL trading card is a limited edition collectible featuring the character Knull from the Marvel franchise. With a print run of only 80, this card is made of aluminum, card stock, and metal materials, and includes features such as serial numbering, holograms, short prints, and various parallel/variety designs. It is part of the Topps Chrome insert set and is considered a collectors' edition, making it a highly sought-after item for fans and collectors of Marvel trading cards.