2026 Topps Baseball Series 1 continues the celebration of the 75th Anniversary of Topps Baseball with a hanger box format loaded for collectors. Built on the new 2026 design, Series 1 delivers a massive 350-card Base Set featuring today’s biggest MLB stars, top rookies, Future Stars, League Leaders, and team cards. Please note: All trading card products are non-refundable and cannot be exchanged once the order has been processed.