New/Sealed – 1 in stock. The 2025-26 Topps Chrome Basketball Mega Box is a premium retail release packed with exclusive “Blue X-Fractors”. Key Product DetailsPack Configuration: 6 cards per pack, 7 packs per box (42 total cards). Base Set: 299 cards featuring rookies, stars, and retired legends. Box Breakdown: Look for exclusive chase inserts and autograph variations (including 1-of-1s).