2026 Topps Series 1 Baseball Celebration Mega Box

2026 Topps Series 1 Baseball Celebration Mega Box

The 2026 Topps Series 1 Baseball Celebration Mega Box arrives just in time for MLB® Opening Day, expanding on the flagship release while continuing the 75th Anniversary celebration of Topps Baseball.

Inside, collectors can build the 350-card Series 1 base set, featuring today’s biggest MLB stars, top rookies, Future Stars, League Leaders, and team cards. Special 75th anniversary inserts and parallels honor the legacy of Topps and its lasting impact on the hobby.

The Celebration Mega Box also includes exclusive parallels and inserts, adding even more color and chase to every rip. Fan-favorite insert sets return, including Dugout Peeks, Walk This Way, and Gameday Drip, along with fun cards highlighting MLB team mascots.

Autographs and relic cards remain a cornerstone of the product, delivering the premium hits collectors expect from Topps flagship baseball releases.

Celebrate Opening Day and 75 years of Topps Baseball history with the 2026 Topps Series 1 Celebration Mega Box.

2026 Topps Series 1 Baseball Celebration Mega Box Details

• 14 Cards per Pack, 14 Packs per Box

RATES & POLICIES

WOW SPORTS offers Free First Class USPS Shipping on all orders within the United States. Orders are usually delivered in 5 business days.

Orders placed on business days before 12 p.m. EST typically ship out the same day.

All shipments are not fully insured against loss, theft or damage.

DELIVERY TRACKING

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DELIVERY

Remember to check the condition of your ordered goods when delivered. You can always refuse it or partially reject the delivery if you have any concerns.