2026 Topps Baseball Series 1 Celebration Mega Box
Configuration :
14 packs per box
14 cards per pack
Topps Series 1 Celebration Mega Box arrives just in time for the start of the MLB season, continuing the flagship Series 1 collection and extending the celebration of Topps Baseball’s 75th anniversary.
The Celebration Series features the 350-card Series 1 base set, showcasing today’s biggest MLB stars, top rookies, future standouts, league leaders, and team cards. Collectors can also find anniversary-themed inserts and parallels that honor the long history and legacy of the brand in the hobby.
The Celebration Mega Box introduces exclusive parallels and inserts not found in standard Series 1 products. Returning fan-favorite inserts include Dugout Peeks, Walk this Way, and Gameday Drip, along with mascot-focused collectible cards.
Autographs and relic cards remain a core part of the experience, delivering the signature hit potential that collectors expect from Topps Baseball releases.