The product is a rare and highly sought-after 2018 Marvel Masterpieces 1 of 1 Sketch card featuring Captain America illustrated by Erick Marshall. This unique card is autographed by the artist and authenticated by Upper Deck, adding to its value and collectibility. Made of card stock, this non-sport trading card is a one-of-a-kind piece that would make a prized addition to any Marvel fan's collection.