12 cards per pack, 1 pack per box. 2 Chrome Autographs, 6 Refractor Parallels, 3 Base Numbered Parallels and 1 YouthQuake Insert parallel per box, on average! Chase the highly sought after MLB Debut Patch Autos for 2023's top rookies! -- 2023 Topps Chrome® Update Series returns to the hobby with a boosted build featuring continued inserts from 2023 Topps Chrome® as well as stunning new chase inserts and parallels! 220 of the most compelling subjects from 2023 Topps Baseball Update Series, including recently traded players, new rookies, and rookie debuts, will receive the Chrome® treatment. Look for a variety of all-new Refractor Parallels & Find 2 Autograph Cards per Breaker's Delight Box! The Debut of the Rookie Debut Patch Autograph: Look for these immensely coveted autograph patch cards, which feature the only relic made specifically for a player’s MLB debut. It’s the ultimate 1-of-1 rookie autograph card!