The product is a rare and highly sought-after trading card featuring Zac Gallen of the Arizona Diamondbacks from the 2026 Topps Chrome set. This promo card is part of the lightboard insert set and is a CASE HIT SSP #158. It is a standard-sized card made of card stock, with English text and is ungraded. The card is a parallel variety with features from the base set, making it a valuable addition to any baseball trading card collection.