2026 Topps Heritage Baseball Mega Box2026 Topps Heritage Baseball Mega Box Each Box contains 1 Insert, 4 Short Print Base Cards, 4 Base Card Red Bordered Parallels, 4 Base Chrome Variations, Short Prints, or Nubered Parallels, and 4 Base Card Chrome Silver Sparkle Parallels, on average! Topps Heritage is back, and this year we celebrate the iconic 1977 design with an expanded lineup that includes new base parallels, new inserts, new base variations, new base subsets, plus an exciting mix