Topps presents the 2026 MLB Series 1 Celebration Baseball Trading Cards Mega Box! Each box contains 14 packs per box with 14 cards per pack! Look for exclusive Celebration Base Confetti Parallels! Look out for Retail Exclusive Holo Foil Parallels! Chase Exclusive Topps Dynasty Mascot autograph Relic Cards such as Mascots, Gameday Drip, and Perennial All-Stars! Content may vary. 14 Packs Per Box, 14 Cards Per Pack Look For Exclusive Celebration Base Confetti Parallels Look For Retail Exlusive Holo Foil Parallels Chase Exclusive Topps Dynasty Mascot Autograph Relic Cards Content May Vary